/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 19:46:41,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 19:46:41,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 19:46:41,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 19:46:41,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 19:46:41,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 19:46:41,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 19:46:41,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 19:46:41,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 19:46:41,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 19:46:41,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 19:46:41,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 19:46:41,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 19:46:41,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 19:46:41,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 19:46:41,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 19:46:41,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 19:46:41,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 19:46:41,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 19:46:41,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 19:46:41,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 19:46:41,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 19:46:41,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 19:46:41,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 19:46:41,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 19:46:41,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 19:46:41,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 19:46:41,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 19:46:41,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 19:46:41,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 19:46:41,818 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 19:46:41,818 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 19:46:42,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 19:46:42,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 19:46:42,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 19:46:42,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 19:46:42,033 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 19:46:42,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c [2022-01-31 19:46:42,086 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33bede43/db2fc292e4e04160be81d015bea48ae1/FLAGdd597fb7b [2022-01-31 19:46:42,460 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 19:46:42,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c [2022-01-31 19:46:42,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33bede43/db2fc292e4e04160be81d015bea48ae1/FLAGdd597fb7b [2022-01-31 19:46:42,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e33bede43/db2fc292e4e04160be81d015bea48ae1 [2022-01-31 19:46:42,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 19:46:42,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 19:46:42,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 19:46:42,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 19:46:42,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 19:46:42,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ac3c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42, skipping insertion in model container [2022-01-31 19:46:42,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 19:46:42,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 19:46:42,603 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c[414,427] [2022-01-31 19:46:42,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 19:46:42,631 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 19:46:42,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-cav19/array_init_pair_symmetr.c[414,427] [2022-01-31 19:46:42,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 19:46:42,651 INFO L208 MainTranslator]: Completed translation [2022-01-31 19:46:42,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42 WrapperNode [2022-01-31 19:46:42,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 19:46:42,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 19:46:42,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 19:46:42,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 19:46:42,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 19:46:42,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 19:46:42,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 19:46:42,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 19:46:42,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (1/1) ... [2022-01-31 19:46:42,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 19:46:42,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 19:46:42,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 19:46:42,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 19:46:42,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 19:46:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 19:46:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 19:46:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 19:46:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 19:46:42,735 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 19:46:42,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 19:46:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 19:46:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 19:46:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 19:46:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 19:46:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 19:46:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 19:46:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 19:46:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 19:46:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 19:46:42,788 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 19:46:42,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 19:46:42,937 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 19:46:42,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 19:46:42,941 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 19:46:42,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:46:42 BoogieIcfgContainer [2022-01-31 19:46:42,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 19:46:42,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 19:46:42,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 19:46:42,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 19:46:42,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 07:46:42" (1/3) ... [2022-01-31 19:46:42,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3e7d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:46:42, skipping insertion in model container [2022-01-31 19:46:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 07:46:42" (2/3) ... [2022-01-31 19:46:42,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3e7d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 07:46:42, skipping insertion in model container [2022-01-31 19:46:42,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 07:46:42" (3/3) ... [2022-01-31 19:46:42,962 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr.c [2022-01-31 19:46:42,966 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 19:46:42,967 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 19:46:43,028 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 19:46:43,033 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=JORDAN [2022-01-31 19:46:43,033 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 19:46:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 19:46:43,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-31 19:46:43,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:43,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:43,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:43,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1912773608, now seen corresponding path program 1 times [2022-01-31 19:46:43,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:43,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950147956] [2022-01-31 19:46:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:43,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:43,137 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 19:46:43,330 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:43,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950147956] [2022-01-31 19:46:43,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [950147956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:43,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:43,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 19:46:43,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417654269] [2022-01-31 19:46:43,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:43,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 19:46:43,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:43,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 19:46:43,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-31 19:46:43,361 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 19:46:43,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:43,510 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2022-01-31 19:46:43,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 19:46:43,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-01-31 19:46:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:43,525 INFO L225 Difference]: With dead ends: 66 [2022-01-31 19:46:43,526 INFO L226 Difference]: Without dead ends: 34 [2022-01-31 19:46:43,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-31 19:46:43,532 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 54 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:43,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 28 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:43,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-31 19:46:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2022-01-31 19:46:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 19:46:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-01-31 19:46:43,583 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2022-01-31 19:46:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:43,583 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-01-31 19:46:43,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 19:46:43,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-01-31 19:46:43,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-31 19:46:43,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:43,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:43,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 19:46:43,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:43,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:43,586 INFO L85 PathProgramCache]: Analyzing trace with hash -55010923, now seen corresponding path program 1 times [2022-01-31 19:46:43,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:43,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308888090] [2022-01-31 19:46:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:43,609 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:43,609 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:43,613 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 19:46:43,744 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:43,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308888090] [2022-01-31 19:46:43,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1308888090] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:43,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:43,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 19:46:43,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298905029] [2022-01-31 19:46:43,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:43,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 19:46:43,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:43,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 19:46:43,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 19:46:43,746 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 19:46:43,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:43,881 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-01-31 19:46:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 19:46:43,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-01-31 19:46:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:43,884 INFO L225 Difference]: With dead ends: 59 [2022-01-31 19:46:43,884 INFO L226 Difference]: Without dead ends: 44 [2022-01-31 19:46:43,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-31 19:46:43,889 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 67 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:43,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 22 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-31 19:46:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2022-01-31 19:46:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 19:46:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-01-31 19:46:43,900 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2022-01-31 19:46:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:43,900 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-01-31 19:46:43,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 19:46:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-01-31 19:46:43,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-31 19:46:43,901 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:43,901 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:43,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 19:46:43,902 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:43,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:43,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1107116306, now seen corresponding path program 2 times [2022-01-31 19:46:43,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:43,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320851104] [2022-01-31 19:46:43,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:43,907 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:43,907 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:43,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:43,909 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-31 19:46:43,993 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:43,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320851104] [2022-01-31 19:46:43,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [320851104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:43,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:43,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 19:46:43,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844779866] [2022-01-31 19:46:43,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:43,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 19:46:43,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:43,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 19:46:43,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-31 19:46:43,995 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 19:46:44,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:44,167 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2022-01-31 19:46:44,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 19:46:44,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 35 [2022-01-31 19:46:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:44,169 INFO L225 Difference]: With dead ends: 71 [2022-01-31 19:46:44,169 INFO L226 Difference]: Without dead ends: 54 [2022-01-31 19:46:44,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-01-31 19:46:44,170 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 82 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:44,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 24 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-01-31 19:46:44,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2022-01-31 19:46:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 19:46:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-01-31 19:46:44,180 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 35 [2022-01-31 19:46:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:44,180 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-01-31 19:46:44,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 6 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-31 19:46:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-01-31 19:46:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-31 19:46:44,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:44,181 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:44,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 19:46:44,182 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash -390903153, now seen corresponding path program 3 times [2022-01-31 19:46:44,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:44,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664302177] [2022-01-31 19:46:44,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:44,185 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:44,185 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:44,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:44,186 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-31 19:46:44,312 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:44,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664302177] [2022-01-31 19:46:44,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [664302177] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:44,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:44,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-31 19:46:44,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168771476] [2022-01-31 19:46:44,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:44,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-31 19:46:44,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:44,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-31 19:46:44,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-01-31 19:46:44,313 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 19:46:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:44,499 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2022-01-31 19:46:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-31 19:46:44,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2022-01-31 19:46:44,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:44,501 INFO L225 Difference]: With dead ends: 83 [2022-01-31 19:46:44,501 INFO L226 Difference]: Without dead ends: 64 [2022-01-31 19:46:44,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-01-31 19:46:44,509 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 98 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:44,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 24 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:44,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-31 19:46:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2022-01-31 19:46:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 19:46:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2022-01-31 19:46:44,533 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 45 [2022-01-31 19:46:44,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:44,533 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2022-01-31 19:46:44,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 19:46:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2022-01-31 19:46:44,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-31 19:46:44,536 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:44,536 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:44,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 19:46:44,537 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1153082892, now seen corresponding path program 4 times [2022-01-31 19:46:44,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896481218] [2022-01-31 19:46:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:44,542 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:44,542 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:44,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:44,543 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-31 19:46:44,662 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:44,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896481218] [2022-01-31 19:46:44,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1896481218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:44,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:44,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-31 19:46:44,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898375247] [2022-01-31 19:46:44,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:44,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-31 19:46:44,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:44,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-31 19:46:44,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-01-31 19:46:44,664 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 19:46:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:44,876 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2022-01-31 19:46:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-31 19:46:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 55 [2022-01-31 19:46:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:44,877 INFO L225 Difference]: With dead ends: 95 [2022-01-31 19:46:44,877 INFO L226 Difference]: Without dead ends: 74 [2022-01-31 19:46:44,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2022-01-31 19:46:44,878 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 113 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:44,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 26 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-01-31 19:46:44,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 54. [2022-01-31 19:46:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 19:46:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2022-01-31 19:46:44,888 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 55 [2022-01-31 19:46:44,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:44,888 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2022-01-31 19:46:44,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 19:46:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2022-01-31 19:46:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 19:46:44,889 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:44,889 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:44,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 19:46:44,889 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:44,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:44,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1544862839, now seen corresponding path program 5 times [2022-01-31 19:46:44,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:44,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845333066] [2022-01-31 19:46:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:44,892 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:44,893 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:44,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:44,893 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:44,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,036 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-31 19:46:45,036 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:45,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845333066] [2022-01-31 19:46:45,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1845333066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:45,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:45,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-31 19:46:45,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732624758] [2022-01-31 19:46:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:45,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-31 19:46:45,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:45,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-31 19:46:45,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-01-31 19:46:45,038 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 19:46:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:45,275 INFO L93 Difference]: Finished difference Result 107 states and 123 transitions. [2022-01-31 19:46:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-31 19:46:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 65 [2022-01-31 19:46:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:45,276 INFO L225 Difference]: With dead ends: 107 [2022-01-31 19:46:45,276 INFO L226 Difference]: Without dead ends: 84 [2022-01-31 19:46:45,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2022-01-31 19:46:45,277 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 144 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:45,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 22 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-01-31 19:46:45,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2022-01-31 19:46:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 47 states have internal predecessors, (50), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 19:46:45,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-01-31 19:46:45,297 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 65 [2022-01-31 19:46:45,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:45,297 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-01-31 19:46:45,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 8 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 19:46:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-01-31 19:46:45,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 19:46:45,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:45,301 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:45,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 19:46:45,301 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:45,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2132087558, now seen corresponding path program 6 times [2022-01-31 19:46:45,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:45,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1130505054] [2022-01-31 19:46:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:45,304 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:45,304 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:45,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:45,306 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 19:46:45,424 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:45,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1130505054] [2022-01-31 19:46:45,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1130505054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:45,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:45,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-31 19:46:45,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374920171] [2022-01-31 19:46:45,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:45,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-31 19:46:45,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:45,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-31 19:46:45,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-01-31 19:46:45,425 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 19:46:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:45,679 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2022-01-31 19:46:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-31 19:46:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 75 [2022-01-31 19:46:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:45,681 INFO L225 Difference]: With dead ends: 119 [2022-01-31 19:46:45,681 INFO L226 Difference]: Without dead ends: 94 [2022-01-31 19:46:45,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=213, Unknown=0, NotChecked=0, Total=342 [2022-01-31 19:46:45,682 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 162 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:45,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 24 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 19:46:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-01-31 19:46:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 66. [2022-01-31 19:46:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 19:46:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2022-01-31 19:46:45,694 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 75 [2022-01-31 19:46:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:45,694 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2022-01-31 19:46:45,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 9 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 19:46:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2022-01-31 19:46:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 19:46:45,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:45,695 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:45,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 19:46:45,696 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:45,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1426062205, now seen corresponding path program 7 times [2022-01-31 19:46:45,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:45,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442881871] [2022-01-31 19:46:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:45,698 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:45,699 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:45,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:45,700 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:45,841 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-01-31 19:46:45,842 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:45,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442881871] [2022-01-31 19:46:45,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1442881871] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:45,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:45,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-31 19:46:45,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472935267] [2022-01-31 19:46:45,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:45,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-31 19:46:45,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:45,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-31 19:46:45,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-01-31 19:46:45,843 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 10 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 19:46:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:46,146 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2022-01-31 19:46:46,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-31 19:46:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 10 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 85 [2022-01-31 19:46:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:46,148 INFO L225 Difference]: With dead ends: 131 [2022-01-31 19:46:46,148 INFO L226 Difference]: Without dead ends: 104 [2022-01-31 19:46:46,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=262, Unknown=0, NotChecked=0, Total=420 [2022-01-31 19:46:46,149 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 169 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:46,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 26 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 19:46:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-01-31 19:46:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 72. [2022-01-31 19:46:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 1.0526315789473684) internal successors, (60), 57 states have internal predecessors, (60), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-31 19:46:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-01-31 19:46:46,173 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 85 [2022-01-31 19:46:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:46,174 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-01-31 19:46:46,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 10 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 19:46:46,174 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-01-31 19:46:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 19:46:46,175 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:46,175 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:46,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 19:46:46,175 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1989408768, now seen corresponding path program 8 times [2022-01-31 19:46:46,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:46,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092919314] [2022-01-31 19:46:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:46,178 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:46,178 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:46,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:46,179 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-01-31 19:46:46,319 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:46,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092919314] [2022-01-31 19:46:46,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2092919314] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:46,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:46,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-31 19:46:46,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074711463] [2022-01-31 19:46:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:46,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-31 19:46:46,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-31 19:46:46,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-01-31 19:46:46,321 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 11 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 19:46:46,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:46,661 INFO L93 Difference]: Finished difference Result 143 states and 165 transitions. [2022-01-31 19:46:46,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-31 19:46:46,662 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 11 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 95 [2022-01-31 19:46:46,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:46,663 INFO L225 Difference]: With dead ends: 143 [2022-01-31 19:46:46,663 INFO L226 Difference]: Without dead ends: 114 [2022-01-31 19:46:46,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=316, Unknown=0, NotChecked=0, Total=506 [2022-01-31 19:46:46,664 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 195 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:46,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 26 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 19:46:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-01-31 19:46:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 78. [2022-01-31 19:46:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 62 states have internal predecessors, (65), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-31 19:46:46,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2022-01-31 19:46:46,676 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 95 [2022-01-31 19:46:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:46,676 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2022-01-31 19:46:46,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 11 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-31 19:46:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2022-01-31 19:46:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-31 19:46:46,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:46,677 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:46,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 19:46:46,678 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash 974196093, now seen corresponding path program 9 times [2022-01-31 19:46:46,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:46,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503054346] [2022-01-31 19:46:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:46,680 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:46,680 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:46,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:46,681 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-01-31 19:46:46,829 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:46,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503054346] [2022-01-31 19:46:46,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1503054346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:46,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:46,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-31 19:46:46,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672074050] [2022-01-31 19:46:46,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:46,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-31 19:46:46,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-31 19:46:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-01-31 19:46:46,831 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 12 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-31 19:46:47,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:47,219 INFO L93 Difference]: Finished difference Result 155 states and 179 transitions. [2022-01-31 19:46:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-31 19:46:47,219 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 12 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 105 [2022-01-31 19:46:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:47,220 INFO L225 Difference]: With dead ends: 155 [2022-01-31 19:46:47,220 INFO L226 Difference]: Without dead ends: 124 [2022-01-31 19:46:47,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=225, Invalid=375, Unknown=0, NotChecked=0, Total=600 [2022-01-31 19:46:47,221 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 209 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:47,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 26 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 19:46:47,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-01-31 19:46:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 84. [2022-01-31 19:46:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.044776119402985) internal successors, (70), 67 states have internal predecessors, (70), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-31 19:46:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2022-01-31 19:46:47,237 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 105 [2022-01-31 19:46:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:47,237 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2022-01-31 19:46:47,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 12 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-31 19:46:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2022-01-31 19:46:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-31 19:46:47,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:47,238 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:47,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 19:46:47,239 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:47,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:47,239 INFO L85 PathProgramCache]: Analyzing trace with hash -878770950, now seen corresponding path program 10 times [2022-01-31 19:46:47,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:47,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103496850] [2022-01-31 19:46:47,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:47,242 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:47,242 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:47,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:47,243 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:47,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-01-31 19:46:47,396 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:47,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103496850] [2022-01-31 19:46:47,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2103496850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:47,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:47,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-31 19:46:47,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471963440] [2022-01-31 19:46:47,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:47,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-31 19:46:47,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:47,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-31 19:46:47,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2022-01-31 19:46:47,398 INFO L87 Difference]: Start difference. First operand 84 states and 95 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-31 19:46:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:47,822 INFO L93 Difference]: Finished difference Result 167 states and 193 transitions. [2022-01-31 19:46:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-31 19:46:47,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 115 [2022-01-31 19:46:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:47,824 INFO L225 Difference]: With dead ends: 167 [2022-01-31 19:46:47,824 INFO L226 Difference]: Without dead ends: 134 [2022-01-31 19:46:47,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2022-01-31 19:46:47,825 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 229 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:47,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 28 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 19:46:47,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-01-31 19:46:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 90. [2022-01-31 19:46:47,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.0416666666666667) internal successors, (75), 72 states have internal predecessors, (75), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-01-31 19:46:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2022-01-31 19:46:47,843 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 115 [2022-01-31 19:46:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:47,843 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2022-01-31 19:46:47,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 14 states have internal predecessors, (46), 13 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-01-31 19:46:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2022-01-31 19:46:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 19:46:47,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:47,845 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:47,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 19:46:47,845 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:47,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:47,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1824382583, now seen corresponding path program 11 times [2022-01-31 19:46:47,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:47,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540620035] [2022-01-31 19:46:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:47,848 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:47,848 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:47,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:47,849 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:47,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-01-31 19:46:48,031 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540620035] [2022-01-31 19:46:48,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [540620035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:48,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:48,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-31 19:46:48,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431962854] [2022-01-31 19:46:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:48,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-31 19:46:48,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-31 19:46:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=144, Unknown=0, NotChecked=0, Total=240 [2022-01-31 19:46:48,033 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 16 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 14 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-31 19:46:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:48,486 INFO L93 Difference]: Finished difference Result 179 states and 207 transitions. [2022-01-31 19:46:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-31 19:46:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 14 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 125 [2022-01-31 19:46:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:48,487 INFO L225 Difference]: With dead ends: 179 [2022-01-31 19:46:48,487 INFO L226 Difference]: Without dead ends: 144 [2022-01-31 19:46:48,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=304, Invalid=508, Unknown=0, NotChecked=0, Total=812 [2022-01-31 19:46:48,488 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 246 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:48,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 24 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 19:46:48,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-01-31 19:46:48,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 96. [2022-01-31 19:46:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.0389610389610389) internal successors, (80), 77 states have internal predecessors, (80), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-01-31 19:46:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 109 transitions. [2022-01-31 19:46:48,511 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 109 transitions. Word has length 125 [2022-01-31 19:46:48,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:48,511 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 109 transitions. [2022-01-31 19:46:48,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0625) internal successors, (49), 15 states have internal predecessors, (49), 14 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-01-31 19:46:48,512 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 109 transitions. [2022-01-31 19:46:48,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-31 19:46:48,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:48,512 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:48,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 19:46:48,513 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:48,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:48,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1660057100, now seen corresponding path program 12 times [2022-01-31 19:46:48,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:48,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121979358] [2022-01-31 19:46:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:48,516 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:48,516 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:48,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:48,518 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:48,728 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-01-31 19:46:48,728 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:48,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121979358] [2022-01-31 19:46:48,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1121979358] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:48,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:48,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-31 19:46:48,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489608027] [2022-01-31 19:46:48,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:48,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-31 19:46:48,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:48,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-31 19:46:48,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2022-01-31 19:46:48,729 INFO L87 Difference]: Start difference. First operand 96 states and 109 transitions. Second operand has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 15 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-01-31 19:46:49,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:49,242 INFO L93 Difference]: Finished difference Result 191 states and 221 transitions. [2022-01-31 19:46:49,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-31 19:46:49,243 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 15 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 135 [2022-01-31 19:46:49,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:49,244 INFO L225 Difference]: With dead ends: 191 [2022-01-31 19:46:49,244 INFO L226 Difference]: Without dead ends: 154 [2022-01-31 19:46:49,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=348, Invalid=582, Unknown=0, NotChecked=0, Total=930 [2022-01-31 19:46:49,245 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 273 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:49,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 30 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 19:46:49,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-01-31 19:46:49,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 102. [2022-01-31 19:46:49,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.0365853658536586) internal successors, (85), 82 states have internal predecessors, (85), 16 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-01-31 19:46:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2022-01-31 19:46:49,260 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 135 [2022-01-31 19:46:49,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:49,261 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2022-01-31 19:46:49,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0588235294117645) internal successors, (52), 16 states have internal predecessors, (52), 15 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-01-31 19:46:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2022-01-31 19:46:49,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 19:46:49,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:49,262 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:49,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 19:46:49,262 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1579546481, now seen corresponding path program 13 times [2022-01-31 19:46:49,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321331847] [2022-01-31 19:46:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:49,264 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:49,264 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:49,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:49,265 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:49,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-01-31 19:46:49,515 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:49,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321331847] [2022-01-31 19:46:49,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1321331847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:49,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:49,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-01-31 19:46:49,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421281942] [2022-01-31 19:46:49,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:49,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-31 19:46:49,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:49,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-31 19:46:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2022-01-31 19:46:49,518 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 16 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-01-31 19:46:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:50,014 INFO L93 Difference]: Finished difference Result 203 states and 235 transitions. [2022-01-31 19:46:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-31 19:46:50,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 16 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 145 [2022-01-31 19:46:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:50,016 INFO L225 Difference]: With dead ends: 203 [2022-01-31 19:46:50,016 INFO L226 Difference]: Without dead ends: 164 [2022-01-31 19:46:50,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=395, Invalid=661, Unknown=0, NotChecked=0, Total=1056 [2022-01-31 19:46:50,017 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 325 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:50,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 24 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 19:46:50,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-01-31 19:46:50,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 108. [2022-01-31 19:46:50,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 87 states have (on average 1.0344827586206897) internal successors, (90), 87 states have internal predecessors, (90), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-01-31 19:46:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2022-01-31 19:46:50,033 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 145 [2022-01-31 19:46:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:50,033 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2022-01-31 19:46:50,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 16 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-01-31 19:46:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2022-01-31 19:46:50,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 19:46:50,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:50,034 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:50,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 19:46:50,035 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:50,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:50,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1687623406, now seen corresponding path program 14 times [2022-01-31 19:46:50,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:50,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947217501] [2022-01-31 19:46:50,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:50,037 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:50,037 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:50,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:50,038 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-01-31 19:46:50,291 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:50,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947217501] [2022-01-31 19:46:50,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [947217501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:50,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:50,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-31 19:46:50,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836770207] [2022-01-31 19:46:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:50,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-31 19:46:50,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:50,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-31 19:46:50,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=201, Unknown=0, NotChecked=0, Total=342 [2022-01-31 19:46:50,292 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 17 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-01-31 19:46:50,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:50,881 INFO L93 Difference]: Finished difference Result 215 states and 249 transitions. [2022-01-31 19:46:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-31 19:46:50,882 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 17 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 155 [2022-01-31 19:46:50,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:50,883 INFO L225 Difference]: With dead ends: 215 [2022-01-31 19:46:50,883 INFO L226 Difference]: Without dead ends: 174 [2022-01-31 19:46:50,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=445, Invalid=745, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 19:46:50,884 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 302 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:50,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 30 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 19:46:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-01-31 19:46:50,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 114. [2022-01-31 19:46:50,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 92 states have internal predecessors, (95), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-01-31 19:46:50,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2022-01-31 19:46:50,917 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 155 [2022-01-31 19:46:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:50,918 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2022-01-31 19:46:50,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 18 states have internal predecessors, (58), 17 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-01-31 19:46:50,918 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2022-01-31 19:46:50,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-31 19:46:50,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:50,920 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:50,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 19:46:50,920 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:50,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1223219307, now seen corresponding path program 15 times [2022-01-31 19:46:50,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:50,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159167432] [2022-01-31 19:46:50,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:50,923 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:50,923 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:50,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:50,925 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-01-31 19:46:51,182 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:51,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159167432] [2022-01-31 19:46:51,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1159167432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:51,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:51,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-01-31 19:46:51,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408820347] [2022-01-31 19:46:51,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:51,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-31 19:46:51,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-31 19:46:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=222, Unknown=0, NotChecked=0, Total=380 [2022-01-31 19:46:51,184 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 19 states have internal predecessors, (61), 18 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-01-31 19:46:51,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:51,853 INFO L93 Difference]: Finished difference Result 227 states and 263 transitions. [2022-01-31 19:46:51,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-31 19:46:51,853 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 19 states have internal predecessors, (61), 18 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 165 [2022-01-31 19:46:51,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:51,854 INFO L225 Difference]: With dead ends: 227 [2022-01-31 19:46:51,854 INFO L226 Difference]: Without dead ends: 184 [2022-01-31 19:46:51,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=498, Invalid=834, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 19:46:51,855 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 316 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:51,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 32 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 19:46:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-01-31 19:46:51,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 120. [2022-01-31 19:46:51,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 97 states have internal predecessors, (100), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-01-31 19:46:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 137 transitions. [2022-01-31 19:46:51,885 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 137 transitions. Word has length 165 [2022-01-31 19:46:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:51,887 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 137 transitions. [2022-01-31 19:46:51,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 19 states have internal predecessors, (61), 18 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-01-31 19:46:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 137 transitions. [2022-01-31 19:46:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-31 19:46:51,888 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:51,889 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:51,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 19:46:51,889 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:51,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:51,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1197790232, now seen corresponding path program 16 times [2022-01-31 19:46:51,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:51,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255170520] [2022-01-31 19:46:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:51,892 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:51,892 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:51,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:51,894 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-01-31 19:46:52,147 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:52,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255170520] [2022-01-31 19:46:52,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1255170520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:52,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:52,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-31 19:46:52,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262238834] [2022-01-31 19:46:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:52,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-31 19:46:52,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:52,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-31 19:46:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=244, Unknown=0, NotChecked=0, Total=420 [2022-01-31 19:46:52,149 INFO L87 Difference]: Start difference. First operand 120 states and 137 transitions. Second operand has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 20 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-01-31 19:46:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:52,861 INFO L93 Difference]: Finished difference Result 239 states and 277 transitions. [2022-01-31 19:46:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-31 19:46:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 20 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 175 [2022-01-31 19:46:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:52,863 INFO L225 Difference]: With dead ends: 239 [2022-01-31 19:46:52,863 INFO L226 Difference]: Without dead ends: 194 [2022-01-31 19:46:52,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=554, Invalid=928, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 19:46:52,863 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 369 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:52,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 26 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-01-31 19:46:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 126. [2022-01-31 19:46:52,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 102 states have (on average 1.0294117647058822) internal successors, (105), 102 states have internal predecessors, (105), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-01-31 19:46:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2022-01-31 19:46:52,884 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 175 [2022-01-31 19:46:52,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:52,884 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2022-01-31 19:46:52,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 20 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-01-31 19:46:52,885 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2022-01-31 19:46:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-01-31 19:46:52,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:52,886 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:52,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 19:46:52,886 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:52,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1490681499, now seen corresponding path program 17 times [2022-01-31 19:46:52,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:52,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498642230] [2022-01-31 19:46:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:52,889 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:52,889 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:52,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:52,891 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-01-31 19:46:53,156 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:53,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498642230] [2022-01-31 19:46:53,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [498642230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:53,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:53,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-31 19:46:53,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313199627] [2022-01-31 19:46:53,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:53,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-31 19:46:53,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:53,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-31 19:46:53,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2022-01-31 19:46:53,157 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 20 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-01-31 19:46:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:53,967 INFO L93 Difference]: Finished difference Result 251 states and 291 transitions. [2022-01-31 19:46:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-31 19:46:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 20 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 185 [2022-01-31 19:46:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:53,969 INFO L225 Difference]: With dead ends: 251 [2022-01-31 19:46:53,969 INFO L226 Difference]: Without dead ends: 204 [2022-01-31 19:46:53,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=613, Invalid=1027, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 19:46:53,970 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 362 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:53,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 28 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-01-31 19:46:53,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 132. [2022-01-31 19:46:53,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 107 states have (on average 1.02803738317757) internal successors, (110), 107 states have internal predecessors, (110), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-31 19:46:53,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 151 transitions. [2022-01-31 19:46:53,994 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 151 transitions. Word has length 185 [2022-01-31 19:46:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:53,994 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 151 transitions. [2022-01-31 19:46:53,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0454545454545454) internal successors, (67), 21 states have internal predecessors, (67), 20 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-01-31 19:46:53,995 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 151 transitions. [2022-01-31 19:46:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-01-31 19:46:53,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:53,997 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:53,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 19:46:53,997 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:53,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:53,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2130266338, now seen corresponding path program 18 times [2022-01-31 19:46:53,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:53,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29822524] [2022-01-31 19:46:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:53,999 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:54,000 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:54,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:54,002 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:46:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-01-31 19:46:54,330 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:54,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29822524] [2022-01-31 19:46:54,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [29822524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:54,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:54,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-31 19:46:54,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81710999] [2022-01-31 19:46:54,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:54,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-31 19:46:54,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-31 19:46:54,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=291, Unknown=0, NotChecked=0, Total=506 [2022-01-31 19:46:54,332 INFO L87 Difference]: Start difference. First operand 132 states and 151 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 21 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-01-31 19:46:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:55,218 INFO L93 Difference]: Finished difference Result 263 states and 305 transitions. [2022-01-31 19:46:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-31 19:46:55,218 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 21 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 195 [2022-01-31 19:46:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:55,220 INFO L225 Difference]: With dead ends: 263 [2022-01-31 19:46:55,220 INFO L226 Difference]: Without dead ends: 214 [2022-01-31 19:46:55,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=1131, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 19:46:55,221 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 418 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:55,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 26 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:55,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-31 19:46:55,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 138. [2022-01-31 19:46:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 112 states have (on average 1.0267857142857142) internal successors, (115), 112 states have internal predecessors, (115), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-01-31 19:46:55,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2022-01-31 19:46:55,261 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 195 [2022-01-31 19:46:55,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:55,262 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2022-01-31 19:46:55,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 21 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-01-31 19:46:55,262 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2022-01-31 19:46:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-31 19:46:55,264 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:55,264 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:55,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 19:46:55,265 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1383920223, now seen corresponding path program 19 times [2022-01-31 19:46:55,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:55,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820479613] [2022-01-31 19:46:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:55,268 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:55,268 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:55,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:55,270 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:46:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:46:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-01-31 19:46:55,578 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:55,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820479613] [2022-01-31 19:46:55,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [820479613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:55,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:55,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-31 19:46:55,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330314243] [2022-01-31 19:46:55,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:55,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-31 19:46:55,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:55,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-31 19:46:55,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=316, Unknown=0, NotChecked=0, Total=552 [2022-01-31 19:46:55,579 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 22 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-31 19:46:56,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:56,460 INFO L93 Difference]: Finished difference Result 275 states and 319 transitions. [2022-01-31 19:46:56,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-31 19:46:56,461 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 22 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 205 [2022-01-31 19:46:56,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:56,462 INFO L225 Difference]: With dead ends: 275 [2022-01-31 19:46:56,462 INFO L226 Difference]: Without dead ends: 224 [2022-01-31 19:46:56,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=740, Invalid=1240, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 19:46:56,463 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 426 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:56,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 28 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-01-31 19:46:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 144. [2022-01-31 19:46:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 117 states have (on average 1.0256410256410255) internal successors, (120), 117 states have internal predecessors, (120), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-31 19:46:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 165 transitions. [2022-01-31 19:46:56,491 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 165 transitions. Word has length 205 [2022-01-31 19:46:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:56,492 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 165 transitions. [2022-01-31 19:46:56,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 22 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-31 19:46:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 165 transitions. [2022-01-31 19:46:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-31 19:46:56,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:56,493 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:56,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 19:46:56,494 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 219213276, now seen corresponding path program 20 times [2022-01-31 19:46:56,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:56,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1157641418] [2022-01-31 19:46:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:56,496 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:56,496 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:56,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:56,498 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:56,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:46:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:46:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:46:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-01-31 19:46:56,810 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:56,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1157641418] [2022-01-31 19:46:56,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1157641418] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:56,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:56,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-01-31 19:46:56,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26344239] [2022-01-31 19:46:56,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:56,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-31 19:46:56,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:56,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-31 19:46:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=342, Unknown=0, NotChecked=0, Total=600 [2022-01-31 19:46:56,811 INFO L87 Difference]: Start difference. First operand 144 states and 165 transitions. Second operand has 25 states, 25 states have (on average 3.04) internal successors, (76), 24 states have internal predecessors, (76), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-01-31 19:46:57,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:57,780 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2022-01-31 19:46:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-31 19:46:57,780 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 24 states have internal predecessors, (76), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 215 [2022-01-31 19:46:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:57,781 INFO L225 Difference]: With dead ends: 287 [2022-01-31 19:46:57,781 INFO L226 Difference]: Without dead ends: 234 [2022-01-31 19:46:57,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=808, Invalid=1354, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 19:46:57,783 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 449 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:57,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [449 Valid, 28 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-01-31 19:46:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 150. [2022-01-31 19:46:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 122 states have (on average 1.0245901639344261) internal successors, (125), 122 states have internal predecessors, (125), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-01-31 19:46:57,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 172 transitions. [2022-01-31 19:46:57,814 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 172 transitions. Word has length 215 [2022-01-31 19:46:57,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:57,815 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 172 transitions. [2022-01-31 19:46:57,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.04) internal successors, (76), 24 states have internal predecessors, (76), 23 states have call successors, (23), 4 states have call predecessors, (23), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-01-31 19:46:57,815 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 172 transitions. [2022-01-31 19:46:57,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-01-31 19:46:57,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:57,816 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:57,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 19:46:57,816 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1542640807, now seen corresponding path program 21 times [2022-01-31 19:46:57,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:57,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464869635] [2022-01-31 19:46:57,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:57,819 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:57,819 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:57,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:57,820 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:46:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:46:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:46:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:46:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:58,167 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-01-31 19:46:58,167 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:58,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464869635] [2022-01-31 19:46:58,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1464869635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:58,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:58,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-01-31 19:46:58,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691390510] [2022-01-31 19:46:58,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:58,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-31 19:46:58,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:58,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-31 19:46:58,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=369, Unknown=0, NotChecked=0, Total=650 [2022-01-31 19:46:58,169 INFO L87 Difference]: Start difference. First operand 150 states and 172 transitions. Second operand has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-31 19:46:59,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:46:59,109 INFO L93 Difference]: Finished difference Result 299 states and 347 transitions. [2022-01-31 19:46:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-31 19:46:59,111 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 225 [2022-01-31 19:46:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:46:59,112 INFO L225 Difference]: With dead ends: 299 [2022-01-31 19:46:59,112 INFO L226 Difference]: Without dead ends: 244 [2022-01-31 19:46:59,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=879, Invalid=1473, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 19:46:59,113 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 522 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:46:59,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 24 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-31 19:46:59,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-01-31 19:46:59,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 156. [2022-01-31 19:46:59,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.0236220472440944) internal successors, (130), 127 states have internal predecessors, (130), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-31 19:46:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 179 transitions. [2022-01-31 19:46:59,148 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 179 transitions. Word has length 225 [2022-01-31 19:46:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:46:59,149 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 179 transitions. [2022-01-31 19:46:59,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 24 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-31 19:46:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 179 transitions. [2022-01-31 19:46:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-01-31 19:46:59,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:46:59,150 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:46:59,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 19:46:59,150 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:46:59,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:46:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1203870422, now seen corresponding path program 22 times [2022-01-31 19:46:59,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:46:59,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835132436] [2022-01-31 19:46:59,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:46:59,153 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:46:59,153 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:46:59,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:46:59,155 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:46:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:46:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:46:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:46:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:46:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:46:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:46:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:46:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:46:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:46:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:46:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:46:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:46:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:46:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:46:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:46:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:46:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:46:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:46:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:46:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:46:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:46:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:46:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:46:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:46:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-01-31 19:46:59,505 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:46:59,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835132436] [2022-01-31 19:46:59,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [835132436] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:46:59,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:46:59,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-31 19:46:59,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182718443] [2022-01-31 19:46:59,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:46:59,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-31 19:46:59,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:46:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-31 19:46:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=397, Unknown=0, NotChecked=0, Total=702 [2022-01-31 19:46:59,508 INFO L87 Difference]: Start difference. First operand 156 states and 179 transitions. Second operand has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 26 states have internal predecessors, (82), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-01-31 19:47:00,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:00,547 INFO L93 Difference]: Finished difference Result 311 states and 361 transitions. [2022-01-31 19:47:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-31 19:47:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 26 states have internal predecessors, (82), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 235 [2022-01-31 19:47:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:00,548 INFO L225 Difference]: With dead ends: 311 [2022-01-31 19:47:00,548 INFO L226 Difference]: Without dead ends: 254 [2022-01-31 19:47:00,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=953, Invalid=1597, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 19:47:00,549 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 482 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:00,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 28 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 19:47:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-01-31 19:47:00,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 162. [2022-01-31 19:47:00,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 132 states have (on average 1.0227272727272727) internal successors, (135), 132 states have internal predecessors, (135), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-01-31 19:47:00,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 186 transitions. [2022-01-31 19:47:00,582 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 186 transitions. Word has length 235 [2022-01-31 19:47:00,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:00,583 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 186 transitions. [2022-01-31 19:47:00,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.037037037037037) internal successors, (82), 26 states have internal predecessors, (82), 25 states have call successors, (25), 4 states have call predecessors, (25), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-01-31 19:47:00,583 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 186 transitions. [2022-01-31 19:47:00,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-01-31 19:47:00,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:00,584 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:00,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 19:47:00,584 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:00,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:00,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1804194733, now seen corresponding path program 23 times [2022-01-31 19:47:00,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:00,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839638575] [2022-01-31 19:47:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:00,586 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:00,587 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:00,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:00,588 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:00,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2022-01-31 19:47:00,948 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:00,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839638575] [2022-01-31 19:47:00,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [839638575] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:00,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:00,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-31 19:47:00,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429351380] [2022-01-31 19:47:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:00,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-31 19:47:00,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:00,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-31 19:47:00,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=426, Unknown=0, NotChecked=0, Total=756 [2022-01-31 19:47:00,951 INFO L87 Difference]: Start difference. First operand 162 states and 186 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-31 19:47:02,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:02,064 INFO L93 Difference]: Finished difference Result 323 states and 375 transitions. [2022-01-31 19:47:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-01-31 19:47:02,065 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 245 [2022-01-31 19:47:02,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:02,066 INFO L225 Difference]: With dead ends: 323 [2022-01-31 19:47:02,066 INFO L226 Difference]: Without dead ends: 264 [2022-01-31 19:47:02,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1030, Invalid=1726, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 19:47:02,068 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 508 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:02,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [508 Valid, 28 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 19:47:02,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-01-31 19:47:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 168. [2022-01-31 19:47:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.0218978102189782) internal successors, (140), 137 states have internal predecessors, (140), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-31 19:47:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 193 transitions. [2022-01-31 19:47:02,108 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 193 transitions. Word has length 245 [2022-01-31 19:47:02,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:02,108 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 193 transitions. [2022-01-31 19:47:02,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 27 states have internal predecessors, (85), 26 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-31 19:47:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 193 transitions. [2022-01-31 19:47:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-01-31 19:47:02,109 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:02,109 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:02,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 19:47:02,110 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:02,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1016410160, now seen corresponding path program 24 times [2022-01-31 19:47:02,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:02,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851623546] [2022-01-31 19:47:02,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:02,113 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:02,113 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:02,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:02,117 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:02,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:02,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-01-31 19:47:02,535 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:02,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851623546] [2022-01-31 19:47:02,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1851623546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:02,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:02,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-01-31 19:47:02,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760070275] [2022-01-31 19:47:02,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:02,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-31 19:47:02,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:02,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-31 19:47:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=456, Unknown=0, NotChecked=0, Total=812 [2022-01-31 19:47:02,536 INFO L87 Difference]: Start difference. First operand 168 states and 193 transitions. Second operand has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 28 states have internal predecessors, (88), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-01-31 19:47:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:03,690 INFO L93 Difference]: Finished difference Result 335 states and 389 transitions. [2022-01-31 19:47:03,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-31 19:47:03,692 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 28 states have internal predecessors, (88), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 255 [2022-01-31 19:47:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:03,694 INFO L225 Difference]: With dead ends: 335 [2022-01-31 19:47:03,694 INFO L226 Difference]: Without dead ends: 274 [2022-01-31 19:47:03,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1110, Invalid=1860, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 19:47:03,695 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 530 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:03,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 28 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 19:47:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-01-31 19:47:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 174. [2022-01-31 19:47:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 142 states have (on average 1.0211267605633803) internal successors, (145), 142 states have internal predecessors, (145), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-31 19:47:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 200 transitions. [2022-01-31 19:47:03,739 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 200 transitions. Word has length 255 [2022-01-31 19:47:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:03,740 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 200 transitions. [2022-01-31 19:47:03,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0344827586206895) internal successors, (88), 28 states have internal predecessors, (88), 27 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-01-31 19:47:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 200 transitions. [2022-01-31 19:47:03,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-31 19:47:03,741 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:03,741 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:03,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 19:47:03,741 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash -606636723, now seen corresponding path program 25 times [2022-01-31 19:47:03,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:03,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233956859] [2022-01-31 19:47:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:03,743 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:03,744 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:03,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:03,746 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-01-31 19:47:04,159 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:04,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233956859] [2022-01-31 19:47:04,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1233956859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:04,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:04,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-31 19:47:04,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754883866] [2022-01-31 19:47:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:04,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-31 19:47:04,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:04,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-31 19:47:04,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=487, Unknown=0, NotChecked=0, Total=870 [2022-01-31 19:47:04,160 INFO L87 Difference]: Start difference. First operand 174 states and 200 transitions. Second operand has 30 states, 30 states have (on average 3.033333333333333) internal successors, (91), 29 states have internal predecessors, (91), 28 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-31 19:47:05,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:05,359 INFO L93 Difference]: Finished difference Result 347 states and 403 transitions. [2022-01-31 19:47:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-01-31 19:47:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.033333333333333) internal successors, (91), 29 states have internal predecessors, (91), 28 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 265 [2022-01-31 19:47:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:05,360 INFO L225 Difference]: With dead ends: 347 [2022-01-31 19:47:05,360 INFO L226 Difference]: Without dead ends: 284 [2022-01-31 19:47:05,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1193, Invalid=1999, Unknown=0, NotChecked=0, Total=3192 [2022-01-31 19:47:05,361 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 548 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:05,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 28 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 19:47:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-01-31 19:47:05,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 180. [2022-01-31 19:47:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 147 states have (on average 1.0204081632653061) internal successors, (150), 147 states have internal predecessors, (150), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-01-31 19:47:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 207 transitions. [2022-01-31 19:47:05,407 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 207 transitions. Word has length 265 [2022-01-31 19:47:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 207 transitions. [2022-01-31 19:47:05,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.033333333333333) internal successors, (91), 29 states have internal predecessors, (91), 28 states have call successors, (28), 4 states have call predecessors, (28), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-31 19:47:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 207 transitions. [2022-01-31 19:47:05,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-01-31 19:47:05,409 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:05,409 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:05,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 19:47:05,409 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:05,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:05,409 INFO L85 PathProgramCache]: Analyzing trace with hash -471069494, now seen corresponding path program 26 times [2022-01-31 19:47:05,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:05,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619731578] [2022-01-31 19:47:05,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:05,411 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:05,411 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:05,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:05,413 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:05,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:05,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2022-01-31 19:47:05,860 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:05,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619731578] [2022-01-31 19:47:05,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [619731578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:05,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:05,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-01-31 19:47:05,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598855784] [2022-01-31 19:47:05,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:05,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-01-31 19:47:05,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:05,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-01-31 19:47:05,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=519, Unknown=0, NotChecked=0, Total=930 [2022-01-31 19:47:05,863 INFO L87 Difference]: Start difference. First operand 180 states and 207 transitions. Second operand has 31 states, 31 states have (on average 3.032258064516129) internal successors, (94), 30 states have internal predecessors, (94), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-31 19:47:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:07,236 INFO L93 Difference]: Finished difference Result 359 states and 417 transitions. [2022-01-31 19:47:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-31 19:47:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.032258064516129) internal successors, (94), 30 states have internal predecessors, (94), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 275 [2022-01-31 19:47:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:07,238 INFO L225 Difference]: With dead ends: 359 [2022-01-31 19:47:07,238 INFO L226 Difference]: Without dead ends: 294 [2022-01-31 19:47:07,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1279, Invalid=2143, Unknown=0, NotChecked=0, Total=3422 [2022-01-31 19:47:07,239 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 605 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:07,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 28 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-31 19:47:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-01-31 19:47:07,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 186. [2022-01-31 19:47:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 152 states have (on average 1.019736842105263) internal successors, (155), 152 states have internal predecessors, (155), 30 states have call successors, (30), 4 states have call predecessors, (30), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-01-31 19:47:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 214 transitions. [2022-01-31 19:47:07,289 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 214 transitions. Word has length 275 [2022-01-31 19:47:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:07,289 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 214 transitions. [2022-01-31 19:47:07,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.032258064516129) internal successors, (94), 30 states have internal predecessors, (94), 29 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-01-31 19:47:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 214 transitions. [2022-01-31 19:47:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-31 19:47:07,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:07,291 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:07,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 19:47:07,291 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:07,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:07,292 INFO L85 PathProgramCache]: Analyzing trace with hash 298878535, now seen corresponding path program 27 times [2022-01-31 19:47:07,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:07,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615189493] [2022-01-31 19:47:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:07,296 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:07,296 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:07,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:07,298 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-01-31 19:47:07,804 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615189493] [2022-01-31 19:47:07,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [615189493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:07,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:07,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-01-31 19:47:07,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521902810] [2022-01-31 19:47:07,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:07,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-01-31 19:47:07,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:07,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-01-31 19:47:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=440, Invalid=552, Unknown=0, NotChecked=0, Total=992 [2022-01-31 19:47:07,806 INFO L87 Difference]: Start difference. First operand 186 states and 214 transitions. Second operand has 32 states, 32 states have (on average 3.03125) internal successors, (97), 31 states have internal predecessors, (97), 30 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-01-31 19:47:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:09,199 INFO L93 Difference]: Finished difference Result 371 states and 431 transitions. [2022-01-31 19:47:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-31 19:47:09,199 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.03125) internal successors, (97), 31 states have internal predecessors, (97), 30 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 285 [2022-01-31 19:47:09,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:09,201 INFO L225 Difference]: With dead ends: 371 [2022-01-31 19:47:09,201 INFO L226 Difference]: Without dead ends: 304 [2022-01-31 19:47:09,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1368, Invalid=2292, Unknown=0, NotChecked=0, Total=3660 [2022-01-31 19:47:09,202 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 582 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:09,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 36 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:09,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-01-31 19:47:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 192. [2022-01-31 19:47:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 157 states have (on average 1.019108280254777) internal successors, (160), 157 states have internal predecessors, (160), 31 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-01-31 19:47:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 221 transitions. [2022-01-31 19:47:09,258 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 221 transitions. Word has length 285 [2022-01-31 19:47:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:09,258 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 221 transitions. [2022-01-31 19:47:09,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.03125) internal successors, (97), 31 states have internal predecessors, (97), 30 states have call successors, (30), 4 states have call predecessors, (30), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-01-31 19:47:09,258 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 221 transitions. [2022-01-31 19:47:09,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-31 19:47:09,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:09,260 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:09,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 19:47:09,260 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:09,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:09,260 INFO L85 PathProgramCache]: Analyzing trace with hash -56307260, now seen corresponding path program 28 times [2022-01-31 19:47:09,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:09,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666523444] [2022-01-31 19:47:09,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:09,263 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:09,263 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:09,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:09,265 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2022-01-31 19:47:09,764 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:09,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666523444] [2022-01-31 19:47:09,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1666523444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:09,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:09,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-01-31 19:47:09,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146776445] [2022-01-31 19:47:09,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:09,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-01-31 19:47:09,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:09,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-01-31 19:47:09,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=586, Unknown=0, NotChecked=0, Total=1056 [2022-01-31 19:47:09,766 INFO L87 Difference]: Start difference. First operand 192 states and 221 transitions. Second operand has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 31 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-01-31 19:47:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:11,364 INFO L93 Difference]: Finished difference Result 383 states and 445 transitions. [2022-01-31 19:47:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-31 19:47:11,366 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 31 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 295 [2022-01-31 19:47:11,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:11,367 INFO L225 Difference]: With dead ends: 383 [2022-01-31 19:47:11,367 INFO L226 Difference]: Without dead ends: 314 [2022-01-31 19:47:11,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1460, Invalid=2446, Unknown=0, NotChecked=0, Total=3906 [2022-01-31 19:47:11,368 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 590 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:11,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 36 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:11,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-01-31 19:47:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 198. [2022-01-31 19:47:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 162 states have (on average 1.0185185185185186) internal successors, (165), 162 states have internal predecessors, (165), 32 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-01-31 19:47:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 228 transitions. [2022-01-31 19:47:11,422 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 228 transitions. Word has length 295 [2022-01-31 19:47:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:11,423 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 228 transitions. [2022-01-31 19:47:11,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0303030303030303) internal successors, (100), 32 states have internal predecessors, (100), 31 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-01-31 19:47:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 228 transitions. [2022-01-31 19:47:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-01-31 19:47:11,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:11,425 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:11,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 19:47:11,425 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:11,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash -847192255, now seen corresponding path program 29 times [2022-01-31 19:47:11,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:11,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292621924] [2022-01-31 19:47:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:11,428 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:11,428 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:11,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:11,430 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-01-31 19:47:11,963 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292621924] [2022-01-31 19:47:11,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1292621924] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:11,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:11,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-01-31 19:47:11,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002456981] [2022-01-31 19:47:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:11,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-01-31 19:47:11,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:11,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-01-31 19:47:11,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=501, Invalid=621, Unknown=0, NotChecked=0, Total=1122 [2022-01-31 19:47:11,964 INFO L87 Difference]: Start difference. First operand 198 states and 228 transitions. Second operand has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 32 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-01-31 19:47:13,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:13,516 INFO L93 Difference]: Finished difference Result 395 states and 459 transitions. [2022-01-31 19:47:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-31 19:47:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 32 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 305 [2022-01-31 19:47:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:13,518 INFO L225 Difference]: With dead ends: 395 [2022-01-31 19:47:13,519 INFO L226 Difference]: Without dead ends: 324 [2022-01-31 19:47:13,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1555, Invalid=2605, Unknown=0, NotChecked=0, Total=4160 [2022-01-31 19:47:13,520 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 639 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:13,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 32 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:13,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-01-31 19:47:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 204. [2022-01-31 19:47:13,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 167 states have (on average 1.0179640718562875) internal successors, (170), 167 states have internal predecessors, (170), 33 states have call successors, (33), 4 states have call predecessors, (33), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-01-31 19:47:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 235 transitions. [2022-01-31 19:47:13,585 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 235 transitions. Word has length 305 [2022-01-31 19:47:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:13,586 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 235 transitions. [2022-01-31 19:47:13,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0294117647058822) internal successors, (103), 33 states have internal predecessors, (103), 32 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-01-31 19:47:13,586 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 235 transitions. [2022-01-31 19:47:13,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-01-31 19:47:13,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:13,587 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:13,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 19:47:13,587 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:13,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1886691006, now seen corresponding path program 30 times [2022-01-31 19:47:13,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:13,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114316481] [2022-01-31 19:47:13,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:13,590 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:13,590 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:13,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:13,593 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-01-31 19:47:14,183 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:14,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114316481] [2022-01-31 19:47:14,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2114316481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:14,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:14,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-01-31 19:47:14,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539908581] [2022-01-31 19:47:14,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:14,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-01-31 19:47:14,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-01-31 19:47:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=533, Invalid=657, Unknown=0, NotChecked=0, Total=1190 [2022-01-31 19:47:14,185 INFO L87 Difference]: Start difference. First operand 204 states and 235 transitions. Second operand has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 33 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-01-31 19:47:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:15,826 INFO L93 Difference]: Finished difference Result 407 states and 473 transitions. [2022-01-31 19:47:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-31 19:47:15,826 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 33 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 315 [2022-01-31 19:47:15,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:15,827 INFO L225 Difference]: With dead ends: 407 [2022-01-31 19:47:15,827 INFO L226 Difference]: Without dead ends: 334 [2022-01-31 19:47:15,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1653, Invalid=2769, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 19:47:15,828 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 709 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:15,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 24 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-01-31 19:47:15,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 210. [2022-01-31 19:47:15,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 172 states have (on average 1.0174418604651163) internal successors, (175), 172 states have internal predecessors, (175), 34 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-01-31 19:47:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 242 transitions. [2022-01-31 19:47:15,885 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 242 transitions. Word has length 315 [2022-01-31 19:47:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:15,886 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 242 transitions. [2022-01-31 19:47:15,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 34 states have internal predecessors, (106), 33 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-01-31 19:47:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 242 transitions. [2022-01-31 19:47:15,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-01-31 19:47:15,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:15,887 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:15,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 19:47:15,887 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:15,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash -980942789, now seen corresponding path program 31 times [2022-01-31 19:47:15,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:15,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199278255] [2022-01-31 19:47:15,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:15,890 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:15,890 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:15,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:15,893 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:16,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-01-31 19:47:16,433 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:16,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199278255] [2022-01-31 19:47:16,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [199278255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:16,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:16,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-01-31 19:47:16,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097252115] [2022-01-31 19:47:16,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:16,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-01-31 19:47:16,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:16,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-01-31 19:47:16,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=566, Invalid=694, Unknown=0, NotChecked=0, Total=1260 [2022-01-31 19:47:16,435 INFO L87 Difference]: Start difference. First operand 210 states and 242 transitions. Second operand has 36 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 35 states have internal predecessors, (109), 34 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-01-31 19:47:18,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:18,133 INFO L93 Difference]: Finished difference Result 419 states and 487 transitions. [2022-01-31 19:47:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-31 19:47:18,134 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 35 states have internal predecessors, (109), 34 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 325 [2022-01-31 19:47:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:18,136 INFO L225 Difference]: With dead ends: 419 [2022-01-31 19:47:18,136 INFO L226 Difference]: Without dead ends: 344 [2022-01-31 19:47:18,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1754, Invalid=2938, Unknown=0, NotChecked=0, Total=4692 [2022-01-31 19:47:18,136 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 678 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:18,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [678 Valid, 28 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:18,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-01-31 19:47:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 216. [2022-01-31 19:47:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 177 states have (on average 1.0169491525423728) internal successors, (180), 177 states have internal predecessors, (180), 35 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-01-31 19:47:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 249 transitions. [2022-01-31 19:47:18,199 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 249 transitions. Word has length 325 [2022-01-31 19:47:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:18,199 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 249 transitions. [2022-01-31 19:47:18,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 35 states have internal predecessors, (109), 34 states have call successors, (34), 4 states have call predecessors, (34), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-01-31 19:47:18,199 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 249 transitions. [2022-01-31 19:47:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-01-31 19:47:18,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:18,201 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:18,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 19:47:18,201 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:18,201 INFO L85 PathProgramCache]: Analyzing trace with hash -776277064, now seen corresponding path program 32 times [2022-01-31 19:47:18,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:18,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755299873] [2022-01-31 19:47:18,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:18,204 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:18,204 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:18,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:18,207 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-01-31 19:47:18,797 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:18,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755299873] [2022-01-31 19:47:18,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [755299873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:18,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:18,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-01-31 19:47:18,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007330306] [2022-01-31 19:47:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:18,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-01-31 19:47:18,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:18,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-01-31 19:47:18,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=732, Unknown=0, NotChecked=0, Total=1332 [2022-01-31 19:47:18,798 INFO L87 Difference]: Start difference. First operand 216 states and 249 transitions. Second operand has 37 states, 37 states have (on average 3.027027027027027) internal successors, (112), 36 states have internal predecessors, (112), 35 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-01-31 19:47:20,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:20,635 INFO L93 Difference]: Finished difference Result 431 states and 501 transitions. [2022-01-31 19:47:20,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-31 19:47:20,636 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.027027027027027) internal successors, (112), 36 states have internal predecessors, (112), 35 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 335 [2022-01-31 19:47:20,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:20,637 INFO L225 Difference]: With dead ends: 431 [2022-01-31 19:47:20,637 INFO L226 Difference]: Without dead ends: 354 [2022-01-31 19:47:20,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1858, Invalid=3112, Unknown=0, NotChecked=0, Total=4970 [2022-01-31 19:47:20,638 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 680 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:20,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 34 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-01-31 19:47:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 222. [2022-01-31 19:47:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 182 states have (on average 1.0164835164835164) internal successors, (185), 182 states have internal predecessors, (185), 36 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-01-31 19:47:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 256 transitions. [2022-01-31 19:47:20,713 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 256 transitions. Word has length 335 [2022-01-31 19:47:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:20,714 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 256 transitions. [2022-01-31 19:47:20,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.027027027027027) internal successors, (112), 36 states have internal predecessors, (112), 35 states have call successors, (35), 4 states have call predecessors, (35), 2 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-01-31 19:47:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 256 transitions. [2022-01-31 19:47:20,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-01-31 19:47:20,715 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:20,715 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:20,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 19:47:20,715 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash -268080843, now seen corresponding path program 33 times [2022-01-31 19:47:20,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:20,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451394292] [2022-01-31 19:47:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:20,718 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:20,718 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:20,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:20,722 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2022-01-31 19:47:21,326 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:21,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451394292] [2022-01-31 19:47:21,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1451394292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:21,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:21,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-01-31 19:47:21,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581660789] [2022-01-31 19:47:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:21,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-01-31 19:47:21,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:21,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-01-31 19:47:21,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=635, Invalid=771, Unknown=0, NotChecked=0, Total=1406 [2022-01-31 19:47:21,328 INFO L87 Difference]: Start difference. First operand 222 states and 256 transitions. Second operand has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 37 states have internal predecessors, (115), 36 states have call successors, (36), 4 states have call predecessors, (36), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-01-31 19:47:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:23,301 INFO L93 Difference]: Finished difference Result 443 states and 515 transitions. [2022-01-31 19:47:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-01-31 19:47:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 37 states have internal predecessors, (115), 36 states have call successors, (36), 4 states have call predecessors, (36), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 345 [2022-01-31 19:47:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:23,303 INFO L225 Difference]: With dead ends: 443 [2022-01-31 19:47:23,303 INFO L226 Difference]: Without dead ends: 364 [2022-01-31 19:47:23,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1965, Invalid=3291, Unknown=0, NotChecked=0, Total=5256 [2022-01-31 19:47:23,304 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 719 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:23,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [719 Valid, 28 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-31 19:47:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-31 19:47:23,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 228. [2022-01-31 19:47:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 187 states have (on average 1.0160427807486632) internal successors, (190), 187 states have internal predecessors, (190), 37 states have call successors, (37), 4 states have call predecessors, (37), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-31 19:47:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 263 transitions. [2022-01-31 19:47:23,381 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 263 transitions. Word has length 345 [2022-01-31 19:47:23,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:23,381 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 263 transitions. [2022-01-31 19:47:23,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.026315789473684) internal successors, (115), 37 states have internal predecessors, (115), 36 states have call successors, (36), 4 states have call predecessors, (36), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-01-31 19:47:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 263 transitions. [2022-01-31 19:47:23,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-01-31 19:47:23,383 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:23,383 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:23,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 19:47:23,383 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:23,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash 39276722, now seen corresponding path program 34 times [2022-01-31 19:47:23,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:23,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691292529] [2022-01-31 19:47:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:23,386 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:23,386 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:23,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:23,389 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:23,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2022-01-31 19:47:24,048 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:24,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691292529] [2022-01-31 19:47:24,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1691292529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:24,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:24,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-01-31 19:47:24,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539853310] [2022-01-31 19:47:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:24,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-01-31 19:47:24,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-01-31 19:47:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=671, Invalid=811, Unknown=0, NotChecked=0, Total=1482 [2022-01-31 19:47:24,049 INFO L87 Difference]: Start difference. First operand 228 states and 263 transitions. Second operand has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 38 states have internal predecessors, (118), 37 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-01-31 19:47:26,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:26,111 INFO L93 Difference]: Finished difference Result 455 states and 529 transitions. [2022-01-31 19:47:26,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-31 19:47:26,111 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 38 states have internal predecessors, (118), 37 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 355 [2022-01-31 19:47:26,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:26,113 INFO L225 Difference]: With dead ends: 455 [2022-01-31 19:47:26,113 INFO L226 Difference]: Without dead ends: 374 [2022-01-31 19:47:26,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2075, Invalid=3475, Unknown=0, NotChecked=0, Total=5550 [2022-01-31 19:47:26,113 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 791 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:26,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 28 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [865 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 19:47:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2022-01-31 19:47:26,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 234. [2022-01-31 19:47:26,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 192 states have (on average 1.015625) internal successors, (195), 192 states have internal predecessors, (195), 38 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-01-31 19:47:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 270 transitions. [2022-01-31 19:47:26,187 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 270 transitions. Word has length 355 [2022-01-31 19:47:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:26,187 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 270 transitions. [2022-01-31 19:47:26,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0256410256410255) internal successors, (118), 38 states have internal predecessors, (118), 37 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-01-31 19:47:26,187 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 270 transitions. [2022-01-31 19:47:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-01-31 19:47:26,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:26,189 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:26,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 19:47:26,189 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:26,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1567057361, now seen corresponding path program 35 times [2022-01-31 19:47:26,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:26,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975352170] [2022-01-31 19:47:26,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:26,191 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:26,191 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:26,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:26,194 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:26,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:26,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2022-01-31 19:47:26,840 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:26,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975352170] [2022-01-31 19:47:26,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [975352170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:26,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:26,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-01-31 19:47:26,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429404025] [2022-01-31 19:47:26,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:26,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 19:47:26,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:26,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 19:47:26,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=708, Invalid=852, Unknown=0, NotChecked=0, Total=1560 [2022-01-31 19:47:26,842 INFO L87 Difference]: Start difference. First operand 234 states and 270 transitions. Second operand has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 38 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-31 19:47:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:29,010 INFO L93 Difference]: Finished difference Result 467 states and 543 transitions. [2022-01-31 19:47:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-31 19:47:29,010 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 38 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 365 [2022-01-31 19:47:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:29,012 INFO L225 Difference]: With dead ends: 467 [2022-01-31 19:47:29,012 INFO L226 Difference]: Without dead ends: 384 [2022-01-31 19:47:29,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2188, Invalid=3664, Unknown=0, NotChecked=0, Total=5852 [2022-01-31 19:47:29,013 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 826 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:29,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 30 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 19:47:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-01-31 19:47:29,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 240. [2022-01-31 19:47:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 197 states have (on average 1.015228426395939) internal successors, (200), 197 states have internal predecessors, (200), 39 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-01-31 19:47:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 277 transitions. [2022-01-31 19:47:29,090 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 277 transitions. Word has length 365 [2022-01-31 19:47:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:29,090 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 277 transitions. [2022-01-31 19:47:29,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.025) internal successors, (121), 39 states have internal predecessors, (121), 38 states have call successors, (38), 4 states have call predecessors, (38), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-31 19:47:29,090 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 277 transitions. [2022-01-31 19:47:29,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-01-31 19:47:29,092 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:29,092 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:29,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 19:47:29,092 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:29,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1403598252, now seen corresponding path program 36 times [2022-01-31 19:47:29,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:29,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280690987] [2022-01-31 19:47:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:29,094 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:29,095 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:29,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:29,098 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2022-01-31 19:47:29,772 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:29,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280690987] [2022-01-31 19:47:29,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [280690987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:29,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:29,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-01-31 19:47:29,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893800173] [2022-01-31 19:47:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:29,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-31 19:47:29,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:29,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-31 19:47:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=746, Invalid=894, Unknown=0, NotChecked=0, Total=1640 [2022-01-31 19:47:29,774 INFO L87 Difference]: Start difference. First operand 240 states and 277 transitions. Second operand has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 40 states have internal predecessors, (124), 39 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-01-31 19:47:32,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:32,039 INFO L93 Difference]: Finished difference Result 479 states and 557 transitions. [2022-01-31 19:47:32,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-31 19:47:32,039 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 40 states have internal predecessors, (124), 39 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 375 [2022-01-31 19:47:32,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:32,041 INFO L225 Difference]: With dead ends: 479 [2022-01-31 19:47:32,041 INFO L226 Difference]: Without dead ends: 394 [2022-01-31 19:47:32,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2304, Invalid=3858, Unknown=0, NotChecked=0, Total=6162 [2022-01-31 19:47:32,042 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 836 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 920 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 920 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:32,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 28 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [920 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 19:47:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-01-31 19:47:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 246. [2022-01-31 19:47:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 202 states have (on average 1.0148514851485149) internal successors, (205), 202 states have internal predecessors, (205), 40 states have call successors, (40), 4 states have call predecessors, (40), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-01-31 19:47:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 284 transitions. [2022-01-31 19:47:32,126 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 284 transitions. Word has length 375 [2022-01-31 19:47:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:32,126 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 284 transitions. [2022-01-31 19:47:32,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.024390243902439) internal successors, (124), 40 states have internal predecessors, (124), 39 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-01-31 19:47:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 284 transitions. [2022-01-31 19:47:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-01-31 19:47:32,128 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:32,128 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:32,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 19:47:32,128 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:32,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1302260951, now seen corresponding path program 37 times [2022-01-31 19:47:32,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:32,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417242913] [2022-01-31 19:47:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:32,131 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:32,131 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:32,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:32,134 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:32,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:32,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2022-01-31 19:47:32,857 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:32,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417242913] [2022-01-31 19:47:32,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [417242913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:32,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:32,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-01-31 19:47:32,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732353201] [2022-01-31 19:47:32,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:32,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-01-31 19:47:32,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-01-31 19:47:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=785, Invalid=937, Unknown=0, NotChecked=0, Total=1722 [2022-01-31 19:47:32,859 INFO L87 Difference]: Start difference. First operand 246 states and 284 transitions. Second operand has 42 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 41 states have internal predecessors, (127), 40 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-01-31 19:47:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:35,254 INFO L93 Difference]: Finished difference Result 491 states and 571 transitions. [2022-01-31 19:47:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-31 19:47:35,255 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 41 states have internal predecessors, (127), 40 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 385 [2022-01-31 19:47:35,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:35,256 INFO L225 Difference]: With dead ends: 491 [2022-01-31 19:47:35,256 INFO L226 Difference]: Without dead ends: 404 [2022-01-31 19:47:35,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2423, Invalid=4057, Unknown=0, NotChecked=0, Total=6480 [2022-01-31 19:47:35,257 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 896 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 983 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:35,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 28 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [983 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 19:47:35,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-01-31 19:47:35,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 252. [2022-01-31 19:47:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 207 states have (on average 1.0144927536231885) internal successors, (210), 207 states have internal predecessors, (210), 41 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-01-31 19:47:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 291 transitions. [2022-01-31 19:47:35,339 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 291 transitions. Word has length 385 [2022-01-31 19:47:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:35,340 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 291 transitions. [2022-01-31 19:47:35,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 41 states have internal predecessors, (127), 40 states have call successors, (40), 4 states have call predecessors, (40), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-01-31 19:47:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 291 transitions. [2022-01-31 19:47:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-01-31 19:47:35,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:35,341 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:35,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 19:47:35,341 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:35,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1500503386, now seen corresponding path program 38 times [2022-01-31 19:47:35,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:35,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473875645] [2022-01-31 19:47:35,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:35,344 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:35,344 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:35,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:35,348 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2022-01-31 19:47:36,102 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:36,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473875645] [2022-01-31 19:47:36,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1473875645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:36,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:36,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-01-31 19:47:36,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964262250] [2022-01-31 19:47:36,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:36,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-01-31 19:47:36,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:36,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-01-31 19:47:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=825, Invalid=981, Unknown=0, NotChecked=0, Total=1806 [2022-01-31 19:47:36,104 INFO L87 Difference]: Start difference. First operand 252 states and 291 transitions. Second operand has 43 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 42 states have internal predecessors, (130), 41 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-01-31 19:47:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:38,568 INFO L93 Difference]: Finished difference Result 503 states and 585 transitions. [2022-01-31 19:47:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-31 19:47:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 42 states have internal predecessors, (130), 41 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 395 [2022-01-31 19:47:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:38,570 INFO L225 Difference]: With dead ends: 503 [2022-01-31 19:47:38,570 INFO L226 Difference]: Without dead ends: 414 [2022-01-31 19:47:38,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2545, Invalid=4261, Unknown=0, NotChecked=0, Total=6806 [2022-01-31 19:47:38,571 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 859 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:38,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 34 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-31 19:47:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-01-31 19:47:38,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 258. [2022-01-31 19:47:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 212 states have (on average 1.0141509433962264) internal successors, (215), 212 states have internal predecessors, (215), 42 states have call successors, (42), 4 states have call predecessors, (42), 3 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-01-31 19:47:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2022-01-31 19:47:38,664 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 395 [2022-01-31 19:47:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:38,664 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2022-01-31 19:47:38,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 42 states have internal predecessors, (130), 41 states have call successors, (41), 4 states have call predecessors, (41), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-01-31 19:47:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2022-01-31 19:47:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-01-31 19:47:38,666 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:38,666 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:38,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 19:47:38,666 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:38,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1812048861, now seen corresponding path program 39 times [2022-01-31 19:47:38,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:38,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85450376] [2022-01-31 19:47:38,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:38,669 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:38,669 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:38,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:38,673 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2022-01-31 19:47:39,447 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:39,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85450376] [2022-01-31 19:47:39,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [85450376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:39,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:39,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-01-31 19:47:39,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96048793] [2022-01-31 19:47:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:39,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-01-31 19:47:39,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:39,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-01-31 19:47:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=866, Invalid=1026, Unknown=0, NotChecked=0, Total=1892 [2022-01-31 19:47:39,449 INFO L87 Difference]: Start difference. First operand 258 states and 298 transitions. Second operand has 44 states, 44 states have (on average 3.022727272727273) internal successors, (133), 43 states have internal predecessors, (133), 42 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-01-31 19:47:42,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:42,137 INFO L93 Difference]: Finished difference Result 515 states and 599 transitions. [2022-01-31 19:47:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-01-31 19:47:42,138 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.022727272727273) internal successors, (133), 43 states have internal predecessors, (133), 42 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 405 [2022-01-31 19:47:42,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:42,139 INFO L225 Difference]: With dead ends: 515 [2022-01-31 19:47:42,140 INFO L226 Difference]: Without dead ends: 424 [2022-01-31 19:47:42,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2670, Invalid=4470, Unknown=0, NotChecked=0, Total=7140 [2022-01-31 19:47:42,140 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 943 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 1030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1030 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:42,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [943 Valid, 28 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1030 Valid, 837 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:47:42,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-01-31 19:47:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 264. [2022-01-31 19:47:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 217 states have (on average 1.0138248847926268) internal successors, (220), 217 states have internal predecessors, (220), 43 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-01-31 19:47:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 305 transitions. [2022-01-31 19:47:42,233 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 305 transitions. Word has length 405 [2022-01-31 19:47:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:42,233 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 305 transitions. [2022-01-31 19:47:42,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.022727272727273) internal successors, (133), 43 states have internal predecessors, (133), 42 states have call successors, (42), 4 states have call predecessors, (42), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-01-31 19:47:42,234 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 305 transitions. [2022-01-31 19:47:42,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-01-31 19:47:42,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:42,235 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:42,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 19:47:42,236 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:42,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1955883104, now seen corresponding path program 40 times [2022-01-31 19:47:42,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:42,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887307225] [2022-01-31 19:47:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:42,239 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:42,239 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:42,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:42,243 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:47:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2022-01-31 19:47:43,082 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887307225] [2022-01-31 19:47:43,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1887307225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:43,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:43,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-01-31 19:47:43,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487449413] [2022-01-31 19:47:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:43,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-31 19:47:43,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-31 19:47:43,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=908, Invalid=1072, Unknown=0, NotChecked=0, Total=1980 [2022-01-31 19:47:43,084 INFO L87 Difference]: Start difference. First operand 264 states and 305 transitions. Second operand has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 44 states have internal predecessors, (136), 43 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-01-31 19:47:45,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:45,811 INFO L93 Difference]: Finished difference Result 527 states and 613 transitions. [2022-01-31 19:47:45,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-31 19:47:45,811 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 44 states have internal predecessors, (136), 43 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 415 [2022-01-31 19:47:45,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:45,813 INFO L225 Difference]: With dead ends: 527 [2022-01-31 19:47:45,813 INFO L226 Difference]: Without dead ends: 434 [2022-01-31 19:47:45,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 901 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2798, Invalid=4684, Unknown=0, NotChecked=0, Total=7482 [2022-01-31 19:47:45,814 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 864 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:45,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [864 Valid, 32 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:47:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-01-31 19:47:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 270. [2022-01-31 19:47:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 222 states have (on average 1.0135135135135136) internal successors, (225), 222 states have internal predecessors, (225), 44 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-01-31 19:47:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 312 transitions. [2022-01-31 19:47:45,910 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 312 transitions. Word has length 415 [2022-01-31 19:47:45,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:45,910 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 312 transitions. [2022-01-31 19:47:45,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 44 states have internal predecessors, (136), 43 states have call successors, (43), 4 states have call predecessors, (43), 2 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-01-31 19:47:45,911 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 312 transitions. [2022-01-31 19:47:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-01-31 19:47:45,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:45,912 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:45,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 19:47:45,913 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:45,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:45,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2073025821, now seen corresponding path program 41 times [2022-01-31 19:47:45,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:45,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523838076] [2022-01-31 19:47:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:45,915 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:45,916 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:45,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:45,919 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:47:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:47:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2022-01-31 19:47:46,747 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523838076] [2022-01-31 19:47:46,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [523838076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:46,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:46,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-01-31 19:47:46,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520742658] [2022-01-31 19:47:46,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:46,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-01-31 19:47:46,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:46,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-01-31 19:47:46,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=951, Invalid=1119, Unknown=0, NotChecked=0, Total=2070 [2022-01-31 19:47:46,749 INFO L87 Difference]: Start difference. First operand 270 states and 312 transitions. Second operand has 46 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 45 states have internal predecessors, (139), 44 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-01-31 19:47:49,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:49,592 INFO L93 Difference]: Finished difference Result 539 states and 627 transitions. [2022-01-31 19:47:49,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-31 19:47:49,592 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 45 states have internal predecessors, (139), 44 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 425 [2022-01-31 19:47:49,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:49,594 INFO L225 Difference]: With dead ends: 539 [2022-01-31 19:47:49,594 INFO L226 Difference]: Without dead ends: 444 [2022-01-31 19:47:49,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2929, Invalid=4903, Unknown=0, NotChecked=0, Total=7832 [2022-01-31 19:47:49,594 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 958 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 1051 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1051 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:49,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 28 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1051 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:47:49,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-01-31 19:47:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 276. [2022-01-31 19:47:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 227 states have (on average 1.013215859030837) internal successors, (230), 227 states have internal predecessors, (230), 45 states have call successors, (45), 4 states have call predecessors, (45), 3 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-01-31 19:47:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 319 transitions. [2022-01-31 19:47:49,703 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 319 transitions. Word has length 425 [2022-01-31 19:47:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:49,703 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 319 transitions. [2022-01-31 19:47:49,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.0217391304347827) internal successors, (139), 45 states have internal predecessors, (139), 44 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-01-31 19:47:49,703 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 319 transitions. [2022-01-31 19:47:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-01-31 19:47:49,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:49,705 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:49,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 19:47:49,705 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1645941914, now seen corresponding path program 42 times [2022-01-31 19:47:49,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:49,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430458007] [2022-01-31 19:47:49,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:49,709 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:49,709 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:49,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:49,713 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:47:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:47:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:47:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:50,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-01-31 19:47:50,558 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:50,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430458007] [2022-01-31 19:47:50,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1430458007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:50,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:50,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-01-31 19:47:50,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27363058] [2022-01-31 19:47:50,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:50,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-01-31 19:47:50,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:50,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-01-31 19:47:50,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=995, Invalid=1167, Unknown=0, NotChecked=0, Total=2162 [2022-01-31 19:47:50,561 INFO L87 Difference]: Start difference. First operand 276 states and 319 transitions. Second operand has 47 states, 47 states have (on average 3.021276595744681) internal successors, (142), 46 states have internal predecessors, (142), 45 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-01-31 19:47:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:53,598 INFO L93 Difference]: Finished difference Result 551 states and 641 transitions. [2022-01-31 19:47:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-01-31 19:47:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.021276595744681) internal successors, (142), 46 states have internal predecessors, (142), 45 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 435 [2022-01-31 19:47:53,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:53,600 INFO L225 Difference]: With dead ends: 551 [2022-01-31 19:47:53,600 INFO L226 Difference]: Without dead ends: 454 [2022-01-31 19:47:53,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=3063, Invalid=5127, Unknown=0, NotChecked=0, Total=8190 [2022-01-31 19:47:53,601 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 932 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:53,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 30 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:47:53,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-01-31 19:47:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 282. [2022-01-31 19:47:53,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 232 states have (on average 1.0129310344827587) internal successors, (235), 232 states have internal predecessors, (235), 46 states have call successors, (46), 4 states have call predecessors, (46), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-01-31 19:47:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 326 transitions. [2022-01-31 19:47:53,707 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 326 transitions. Word has length 435 [2022-01-31 19:47:53,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:53,707 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 326 transitions. [2022-01-31 19:47:53,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.021276595744681) internal successors, (142), 46 states have internal predecessors, (142), 45 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-01-31 19:47:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 326 transitions. [2022-01-31 19:47:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-01-31 19:47:53,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:53,709 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:53,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 19:47:53,709 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:53,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:53,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2092248599, now seen corresponding path program 43 times [2022-01-31 19:47:53,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:53,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892396049] [2022-01-31 19:47:53,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:53,722 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:53,722 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:53,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:53,728 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:54,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:47:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:47:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:47:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:47:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:54,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2022-01-31 19:47:54,605 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:54,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892396049] [2022-01-31 19:47:54,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [892396049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:54,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:54,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-01-31 19:47:54,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407971386] [2022-01-31 19:47:54,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:54,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-01-31 19:47:54,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-01-31 19:47:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1040, Invalid=1216, Unknown=0, NotChecked=0, Total=2256 [2022-01-31 19:47:54,607 INFO L87 Difference]: Start difference. First operand 282 states and 326 transitions. Second operand has 48 states, 48 states have (on average 3.0208333333333335) internal successors, (145), 47 states have internal predecessors, (145), 46 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-01-31 19:47:57,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:47:57,701 INFO L93 Difference]: Finished difference Result 563 states and 655 transitions. [2022-01-31 19:47:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-31 19:47:57,701 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0208333333333335) internal successors, (145), 47 states have internal predecessors, (145), 46 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 445 [2022-01-31 19:47:57,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:47:57,703 INFO L225 Difference]: With dead ends: 563 [2022-01-31 19:47:57,703 INFO L226 Difference]: Without dead ends: 464 [2022-01-31 19:47:57,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1033 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=3200, Invalid=5356, Unknown=0, NotChecked=0, Total=8556 [2022-01-31 19:47:57,704 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1020 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1122 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:47:57,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 28 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1122 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:47:57,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-01-31 19:47:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 288. [2022-01-31 19:47:57,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 237 states have (on average 1.0126582278481013) internal successors, (240), 237 states have internal predecessors, (240), 47 states have call successors, (47), 4 states have call predecessors, (47), 3 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-01-31 19:47:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 333 transitions. [2022-01-31 19:47:57,818 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 333 transitions. Word has length 445 [2022-01-31 19:47:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:47:57,819 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 333 transitions. [2022-01-31 19:47:57,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0208333333333335) internal successors, (145), 47 states have internal predecessors, (145), 46 states have call successors, (46), 4 states have call predecessors, (46), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-01-31 19:47:57,819 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 333 transitions. [2022-01-31 19:47:57,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-01-31 19:47:57,820 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:47:57,821 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:47:57,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 19:47:57,821 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:47:57,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:47:57,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2046695828, now seen corresponding path program 44 times [2022-01-31 19:47:57,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:47:57,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855944351] [2022-01-31 19:47:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:47:57,826 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:47:57,826 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:47:57,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:47:57,831 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:47:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:47:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:47:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:47:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:47:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:47:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:47:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:47:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:47:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:47:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:47:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:47:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:47:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:47:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:47:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:47:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:47:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:47:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:47:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:47:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:47:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:47:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:47:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:47:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:47:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:47:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:47:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:47:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:47:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:47:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:47:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:47:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:47:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:47:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:47:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:47:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:47:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:47:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:47:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:47:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:47:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:47:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:47:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:47:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:47:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:47:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:47:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-01-31 19:47:58,759 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:47:58,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855944351] [2022-01-31 19:47:58,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [855944351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:47:58,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:47:58,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-01-31 19:47:58,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71609767] [2022-01-31 19:47:58,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:47:58,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-01-31 19:47:58,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:47:58,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-01-31 19:47:58,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1086, Invalid=1266, Unknown=0, NotChecked=0, Total=2352 [2022-01-31 19:47:58,761 INFO L87 Difference]: Start difference. First operand 288 states and 333 transitions. Second operand has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 48 states have internal predecessors, (148), 47 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-01-31 19:48:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:02,087 INFO L93 Difference]: Finished difference Result 575 states and 669 transitions. [2022-01-31 19:48:02,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-31 19:48:02,087 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 48 states have internal predecessors, (148), 47 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 455 [2022-01-31 19:48:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:02,089 INFO L225 Difference]: With dead ends: 575 [2022-01-31 19:48:02,089 INFO L226 Difference]: Without dead ends: 474 [2022-01-31 19:48:02,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3340, Invalid=5590, Unknown=0, NotChecked=0, Total=8930 [2022-01-31 19:48:02,090 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 944 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 1048 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1048 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:02,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 32 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1048 Valid, 951 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:02,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-01-31 19:48:02,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 294. [2022-01-31 19:48:02,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 242 states have (on average 1.012396694214876) internal successors, (245), 242 states have internal predecessors, (245), 48 states have call successors, (48), 4 states have call predecessors, (48), 3 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-01-31 19:48:02,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 340 transitions. [2022-01-31 19:48:02,206 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 340 transitions. Word has length 455 [2022-01-31 19:48:02,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:02,206 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 340 transitions. [2022-01-31 19:48:02,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.020408163265306) internal successors, (148), 48 states have internal predecessors, (148), 47 states have call successors, (47), 4 states have call predecessors, (47), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-01-31 19:48:02,207 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 340 transitions. [2022-01-31 19:48:02,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2022-01-31 19:48:02,209 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:02,209 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:02,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 19:48:02,209 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:02,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:02,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1433549039, now seen corresponding path program 45 times [2022-01-31 19:48:02,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:02,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309628498] [2022-01-31 19:48:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:02,215 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:02,215 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:02,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:02,220 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2022-01-31 19:48:03,181 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:03,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309628498] [2022-01-31 19:48:03,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1309628498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:03,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:03,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-01-31 19:48:03,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661189701] [2022-01-31 19:48:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:03,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-01-31 19:48:03,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-01-31 19:48:03,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=1317, Unknown=0, NotChecked=0, Total=2450 [2022-01-31 19:48:03,183 INFO L87 Difference]: Start difference. First operand 294 states and 340 transitions. Second operand has 50 states, 50 states have (on average 3.02) internal successors, (151), 49 states have internal predecessors, (151), 48 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-01-31 19:48:06,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:06,499 INFO L93 Difference]: Finished difference Result 587 states and 683 transitions. [2022-01-31 19:48:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-31 19:48:06,499 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.02) internal successors, (151), 49 states have internal predecessors, (151), 48 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 465 [2022-01-31 19:48:06,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:06,501 INFO L225 Difference]: With dead ends: 587 [2022-01-31 19:48:06,501 INFO L226 Difference]: Without dead ends: 484 [2022-01-31 19:48:06,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3483, Invalid=5829, Unknown=0, NotChecked=0, Total=9312 [2022-01-31 19:48:06,502 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1036 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:06,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 30 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1144 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-31 19:48:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-01-31 19:48:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 300. [2022-01-31 19:48:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 247 states have (on average 1.0121457489878543) internal successors, (250), 247 states have internal predecessors, (250), 49 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-01-31 19:48:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 347 transitions. [2022-01-31 19:48:06,628 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 347 transitions. Word has length 465 [2022-01-31 19:48:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:06,628 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 347 transitions. [2022-01-31 19:48:06,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.02) internal successors, (151), 49 states have internal predecessors, (151), 48 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-01-31 19:48:06,629 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 347 transitions. [2022-01-31 19:48:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-01-31 19:48:06,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:06,631 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:06,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 19:48:06,631 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:06,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:06,631 INFO L85 PathProgramCache]: Analyzing trace with hash 838084238, now seen corresponding path program 46 times [2022-01-31 19:48:06,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:06,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590666395] [2022-01-31 19:48:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:06,634 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:06,634 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:06,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:06,638 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:07,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:07,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2022-01-31 19:48:07,651 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:07,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590666395] [2022-01-31 19:48:07,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [590666395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:07,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:07,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2022-01-31 19:48:07,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813875264] [2022-01-31 19:48:07,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:07,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-01-31 19:48:07,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:07,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-01-31 19:48:07,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1181, Invalid=1369, Unknown=0, NotChecked=0, Total=2550 [2022-01-31 19:48:07,653 INFO L87 Difference]: Start difference. First operand 300 states and 347 transitions. Second operand has 51 states, 51 states have (on average 3.019607843137255) internal successors, (154), 50 states have internal predecessors, (154), 49 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-01-31 19:48:11,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:11,081 INFO L93 Difference]: Finished difference Result 599 states and 697 transitions. [2022-01-31 19:48:11,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-31 19:48:11,081 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.019607843137255) internal successors, (154), 50 states have internal predecessors, (154), 49 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 475 [2022-01-31 19:48:11,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:11,083 INFO L225 Difference]: With dead ends: 599 [2022-01-31 19:48:11,083 INFO L226 Difference]: Without dead ends: 494 [2022-01-31 19:48:11,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3629, Invalid=6073, Unknown=0, NotChecked=0, Total=9702 [2022-01-31 19:48:11,085 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1078 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 1190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1190 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:11,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 26 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1190 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-01-31 19:48:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 306. [2022-01-31 19:48:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 252 states have (on average 1.0119047619047619) internal successors, (255), 252 states have internal predecessors, (255), 50 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-01-31 19:48:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 354 transitions. [2022-01-31 19:48:11,222 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 354 transitions. Word has length 475 [2022-01-31 19:48:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:11,222 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 354 transitions. [2022-01-31 19:48:11,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.019607843137255) internal successors, (154), 50 states have internal predecessors, (154), 49 states have call successors, (49), 4 states have call predecessors, (49), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-01-31 19:48:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 354 transitions. [2022-01-31 19:48:11,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-01-31 19:48:11,224 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:11,225 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:11,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 19:48:11,225 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:11,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash 934881291, now seen corresponding path program 47 times [2022-01-31 19:48:11,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:11,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320996082] [2022-01-31 19:48:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:11,227 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:11,227 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:11,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:11,232 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2022-01-31 19:48:12,219 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:12,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320996082] [2022-01-31 19:48:12,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1320996082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:12,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:12,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-01-31 19:48:12,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123816436] [2022-01-31 19:48:12,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:12,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-01-31 19:48:12,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:12,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-01-31 19:48:12,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1230, Invalid=1422, Unknown=0, NotChecked=0, Total=2652 [2022-01-31 19:48:12,220 INFO L87 Difference]: Start difference. First operand 306 states and 354 transitions. Second operand has 52 states, 52 states have (on average 3.019230769230769) internal successors, (157), 51 states have internal predecessors, (157), 50 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-01-31 19:48:15,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:15,761 INFO L93 Difference]: Finished difference Result 611 states and 711 transitions. [2022-01-31 19:48:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-31 19:48:15,761 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.019230769230769) internal successors, (157), 51 states have internal predecessors, (157), 50 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 485 [2022-01-31 19:48:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:15,763 INFO L225 Difference]: With dead ends: 611 [2022-01-31 19:48:15,763 INFO L226 Difference]: Without dead ends: 504 [2022-01-31 19:48:15,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3778, Invalid=6322, Unknown=0, NotChecked=0, Total=10100 [2022-01-31 19:48:15,764 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1002 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:15,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 34 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2022-01-31 19:48:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 312. [2022-01-31 19:48:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 257 states have (on average 1.0116731517509727) internal successors, (260), 257 states have internal predecessors, (260), 51 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-01-31 19:48:15,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 361 transitions. [2022-01-31 19:48:15,894 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 361 transitions. Word has length 485 [2022-01-31 19:48:15,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:15,894 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 361 transitions. [2022-01-31 19:48:15,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.019230769230769) internal successors, (157), 51 states have internal predecessors, (157), 50 states have call successors, (50), 4 states have call predecessors, (50), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-01-31 19:48:15,895 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 361 transitions. [2022-01-31 19:48:15,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-01-31 19:48:15,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:15,897 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:15,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 19:48:15,897 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:15,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:15,897 INFO L85 PathProgramCache]: Analyzing trace with hash 408730504, now seen corresponding path program 48 times [2022-01-31 19:48:15,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:15,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589979365] [2022-01-31 19:48:15,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:15,899 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:15,899 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:15,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:15,904 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:16,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:16,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2022-01-31 19:48:16,916 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:16,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589979365] [2022-01-31 19:48:16,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1589979365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:16,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:16,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2022-01-31 19:48:16,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306048388] [2022-01-31 19:48:16,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:16,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-01-31 19:48:16,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-01-31 19:48:16,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1280, Invalid=1476, Unknown=0, NotChecked=0, Total=2756 [2022-01-31 19:48:16,918 INFO L87 Difference]: Start difference. First operand 312 states and 361 transitions. Second operand has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 52 states have internal predecessors, (160), 51 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-01-31 19:48:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:20,501 INFO L93 Difference]: Finished difference Result 623 states and 725 transitions. [2022-01-31 19:48:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-31 19:48:20,502 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 52 states have internal predecessors, (160), 51 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 495 [2022-01-31 19:48:20,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:20,504 INFO L225 Difference]: With dead ends: 623 [2022-01-31 19:48:20,504 INFO L226 Difference]: Without dead ends: 514 [2022-01-31 19:48:20,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3930, Invalid=6576, Unknown=0, NotChecked=0, Total=10506 [2022-01-31 19:48:20,505 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1118 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1237 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:20,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 28 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1237 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:20,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-01-31 19:48:20,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 318. [2022-01-31 19:48:20,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 262 states have (on average 1.0114503816793894) internal successors, (265), 262 states have internal predecessors, (265), 52 states have call successors, (52), 4 states have call predecessors, (52), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-01-31 19:48:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 368 transitions. [2022-01-31 19:48:20,633 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 368 transitions. Word has length 495 [2022-01-31 19:48:20,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:20,633 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 368 transitions. [2022-01-31 19:48:20,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.018867924528302) internal successors, (160), 52 states have internal predecessors, (160), 51 states have call successors, (51), 4 states have call predecessors, (51), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-01-31 19:48:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 368 transitions. [2022-01-31 19:48:20,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-01-31 19:48:20,635 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:20,636 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:20,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 19:48:20,636 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1772695291, now seen corresponding path program 49 times [2022-01-31 19:48:20,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1753311602] [2022-01-31 19:48:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:20,638 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:20,638 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:20,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:20,643 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2022-01-31 19:48:21,737 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:21,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1753311602] [2022-01-31 19:48:21,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1753311602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:21,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:21,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-01-31 19:48:21,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756757319] [2022-01-31 19:48:21,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:21,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-01-31 19:48:21,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:21,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-01-31 19:48:21,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=1531, Unknown=0, NotChecked=0, Total=2862 [2022-01-31 19:48:21,740 INFO L87 Difference]: Start difference. First operand 318 states and 368 transitions. Second operand has 54 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 53 states have internal predecessors, (163), 52 states have call successors, (52), 4 states have call predecessors, (52), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-01-31 19:48:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:25,605 INFO L93 Difference]: Finished difference Result 635 states and 739 transitions. [2022-01-31 19:48:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-31 19:48:25,605 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 53 states have internal predecessors, (163), 52 states have call successors, (52), 4 states have call predecessors, (52), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 505 [2022-01-31 19:48:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:25,607 INFO L225 Difference]: With dead ends: 635 [2022-01-31 19:48:25,607 INFO L226 Difference]: Without dead ends: 524 [2022-01-31 19:48:25,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4085, Invalid=6835, Unknown=0, NotChecked=0, Total=10920 [2022-01-31 19:48:25,608 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1084 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 1205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:25,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1084 Valid, 32 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-01-31 19:48:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 324. [2022-01-31 19:48:25,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 267 states have (on average 1.0112359550561798) internal successors, (270), 267 states have internal predecessors, (270), 53 states have call successors, (53), 4 states have call predecessors, (53), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-31 19:48:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 375 transitions. [2022-01-31 19:48:25,747 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 375 transitions. Word has length 505 [2022-01-31 19:48:25,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:25,747 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 375 transitions. [2022-01-31 19:48:25,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 53 states have internal predecessors, (163), 52 states have call successors, (52), 4 states have call predecessors, (52), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-01-31 19:48:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 375 transitions. [2022-01-31 19:48:25,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2022-01-31 19:48:25,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:25,749 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:25,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 19:48:25,750 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:25,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 186079362, now seen corresponding path program 50 times [2022-01-31 19:48:25,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:25,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959446865] [2022-01-31 19:48:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:25,752 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:25,752 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:25,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:25,757 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:26,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:26,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:26,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2022-01-31 19:48:26,864 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:26,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959446865] [2022-01-31 19:48:26,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [959446865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:26,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:26,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2022-01-31 19:48:26,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218067965] [2022-01-31 19:48:26,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:26,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-01-31 19:48:26,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-01-31 19:48:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1383, Invalid=1587, Unknown=0, NotChecked=0, Total=2970 [2022-01-31 19:48:26,866 INFO L87 Difference]: Start difference. First operand 324 states and 375 transitions. Second operand has 55 states, 55 states have (on average 3.018181818181818) internal successors, (166), 54 states have internal predecessors, (166), 53 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-01-31 19:48:30,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:30,840 INFO L93 Difference]: Finished difference Result 647 states and 753 transitions. [2022-01-31 19:48:30,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-01-31 19:48:30,840 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.018181818181818) internal successors, (166), 54 states have internal predecessors, (166), 53 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 515 [2022-01-31 19:48:30,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:30,843 INFO L225 Difference]: With dead ends: 647 [2022-01-31 19:48:30,843 INFO L226 Difference]: Without dead ends: 534 [2022-01-31 19:48:30,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1376 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4243, Invalid=7099, Unknown=0, NotChecked=0, Total=11342 [2022-01-31 19:48:30,844 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1190 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 1314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1314 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:30,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 28 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1314 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:30,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-01-31 19:48:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 330. [2022-01-31 19:48:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 272 states have (on average 1.0110294117647058) internal successors, (275), 272 states have internal predecessors, (275), 54 states have call successors, (54), 4 states have call predecessors, (54), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-01-31 19:48:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 382 transitions. [2022-01-31 19:48:30,989 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 382 transitions. Word has length 515 [2022-01-31 19:48:30,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:30,989 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 382 transitions. [2022-01-31 19:48:30,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.018181818181818) internal successors, (166), 54 states have internal predecessors, (166), 53 states have call successors, (53), 4 states have call predecessors, (53), 2 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-01-31 19:48:30,989 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 382 transitions. [2022-01-31 19:48:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-01-31 19:48:30,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:30,991 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:30,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 19:48:30,991 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:30,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1744420353, now seen corresponding path program 51 times [2022-01-31 19:48:30,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:30,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603546013] [2022-01-31 19:48:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:30,994 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:30,994 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:30,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:30,999 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:48:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2022-01-31 19:48:32,183 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:32,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603546013] [2022-01-31 19:48:32,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1603546013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:32,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:32,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-01-31 19:48:32,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738072880] [2022-01-31 19:48:32,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:32,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-01-31 19:48:32,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:32,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-01-31 19:48:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1436, Invalid=1644, Unknown=0, NotChecked=0, Total=3080 [2022-01-31 19:48:32,185 INFO L87 Difference]: Start difference. First operand 330 states and 382 transitions. Second operand has 56 states, 56 states have (on average 3.017857142857143) internal successors, (169), 55 states have internal predecessors, (169), 54 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-31 19:48:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:36,432 INFO L93 Difference]: Finished difference Result 659 states and 767 transitions. [2022-01-31 19:48:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-31 19:48:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.017857142857143) internal successors, (169), 55 states have internal predecessors, (169), 54 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 525 [2022-01-31 19:48:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:36,434 INFO L225 Difference]: With dead ends: 659 [2022-01-31 19:48:36,434 INFO L226 Difference]: Without dead ends: 544 [2022-01-31 19:48:36,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=4404, Invalid=7368, Unknown=0, NotChecked=0, Total=11772 [2022-01-31 19:48:36,435 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1144 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:36,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 30 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1270 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-01-31 19:48:36,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 336. [2022-01-31 19:48:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 277 states have (on average 1.0108303249097472) internal successors, (280), 277 states have internal predecessors, (280), 55 states have call successors, (55), 4 states have call predecessors, (55), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-01-31 19:48:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 389 transitions. [2022-01-31 19:48:36,585 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 389 transitions. Word has length 525 [2022-01-31 19:48:36,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:36,585 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 389 transitions. [2022-01-31 19:48:36,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.017857142857143) internal successors, (169), 55 states have internal predecessors, (169), 54 states have call successors, (54), 4 states have call predecessors, (54), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-01-31 19:48:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 389 transitions. [2022-01-31 19:48:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-01-31 19:48:36,587 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:36,588 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:36,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 19:48:36,588 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:36,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1468235132, now seen corresponding path program 52 times [2022-01-31 19:48:36,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:36,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101092733] [2022-01-31 19:48:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:36,592 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:36,592 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:36,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:36,597 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:48:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:48:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:37,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-01-31 19:48:37,744 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:37,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101092733] [2022-01-31 19:48:37,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2101092733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:37,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:37,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2022-01-31 19:48:37,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873872219] [2022-01-31 19:48:37,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:37,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-01-31 19:48:37,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:37,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-01-31 19:48:37,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1490, Invalid=1702, Unknown=0, NotChecked=0, Total=3192 [2022-01-31 19:48:37,746 INFO L87 Difference]: Start difference. First operand 336 states and 389 transitions. Second operand has 57 states, 57 states have (on average 3.017543859649123) internal successors, (172), 56 states have internal predecessors, (172), 55 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-01-31 19:48:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:42,155 INFO L93 Difference]: Finished difference Result 671 states and 781 transitions. [2022-01-31 19:48:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-31 19:48:42,155 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.017543859649123) internal successors, (172), 56 states have internal predecessors, (172), 55 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 535 [2022-01-31 19:48:42,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:42,157 INFO L225 Difference]: With dead ends: 671 [2022-01-31 19:48:42,157 INFO L226 Difference]: Without dead ends: 554 [2022-01-31 19:48:42,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1483 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4568, Invalid=7642, Unknown=0, NotChecked=0, Total=12210 [2022-01-31 19:48:42,158 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1140 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:42,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 30 Invalid, 2447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1270 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 19:48:42,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-31 19:48:42,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 342. [2022-01-31 19:48:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 282 states have (on average 1.0106382978723405) internal successors, (285), 282 states have internal predecessors, (285), 56 states have call successors, (56), 4 states have call predecessors, (56), 3 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-01-31 19:48:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 396 transitions. [2022-01-31 19:48:42,335 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 396 transitions. Word has length 535 [2022-01-31 19:48:42,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:42,335 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 396 transitions. [2022-01-31 19:48:42,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.017543859649123) internal successors, (172), 56 states have internal predecessors, (172), 55 states have call successors, (55), 4 states have call predecessors, (55), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-01-31 19:48:42,335 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 396 transitions. [2022-01-31 19:48:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2022-01-31 19:48:42,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:42,337 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:42,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 19:48:42,338 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1914242311, now seen corresponding path program 53 times [2022-01-31 19:48:42,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:42,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543694279] [2022-01-31 19:48:42,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:42,341 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:42,341 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:42,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:42,347 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:48:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:48:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:48:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2022-01-31 19:48:43,503 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:43,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543694279] [2022-01-31 19:48:43,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [543694279] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:43,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:43,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-01-31 19:48:43,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461516905] [2022-01-31 19:48:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:43,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-01-31 19:48:43,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:43,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-01-31 19:48:43,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1545, Invalid=1761, Unknown=0, NotChecked=0, Total=3306 [2022-01-31 19:48:43,505 INFO L87 Difference]: Start difference. First operand 342 states and 396 transitions. Second operand has 58 states, 58 states have (on average 3.0172413793103448) internal successors, (175), 57 states have internal predecessors, (175), 56 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-01-31 19:48:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:47,966 INFO L93 Difference]: Finished difference Result 683 states and 795 transitions. [2022-01-31 19:48:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-31 19:48:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.0172413793103448) internal successors, (175), 57 states have internal predecessors, (175), 56 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 545 [2022-01-31 19:48:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:47,969 INFO L225 Difference]: With dead ends: 683 [2022-01-31 19:48:47,969 INFO L226 Difference]: Without dead ends: 564 [2022-01-31 19:48:47,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1538 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4735, Invalid=7921, Unknown=0, NotChecked=0, Total=12656 [2022-01-31 19:48:47,970 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1198 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:47,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 28 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-31 19:48:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-01-31 19:48:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 348. [2022-01-31 19:48:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 287 states have (on average 1.0104529616724738) internal successors, (290), 287 states have internal predecessors, (290), 57 states have call successors, (57), 4 states have call predecessors, (57), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-01-31 19:48:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 403 transitions. [2022-01-31 19:48:48,124 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 403 transitions. Word has length 545 [2022-01-31 19:48:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:48,125 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 403 transitions. [2022-01-31 19:48:48,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.0172413793103448) internal successors, (175), 57 states have internal predecessors, (175), 56 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-01-31 19:48:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 403 transitions. [2022-01-31 19:48:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-01-31 19:48:48,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:48,127 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:48,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-31 19:48:48,127 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:48,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:48,127 INFO L85 PathProgramCache]: Analyzing trace with hash -629101962, now seen corresponding path program 54 times [2022-01-31 19:48:48,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:48,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399265947] [2022-01-31 19:48:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:48,129 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:48,130 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:48,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:48,135 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:48:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:48:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:48:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:48:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2022-01-31 19:48:49,446 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:49,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399265947] [2022-01-31 19:48:49,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1399265947] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:49,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:49,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2022-01-31 19:48:49,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069443199] [2022-01-31 19:48:49,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:49,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-01-31 19:48:49,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-01-31 19:48:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1601, Invalid=1821, Unknown=0, NotChecked=0, Total=3422 [2022-01-31 19:48:49,449 INFO L87 Difference]: Start difference. First operand 348 states and 403 transitions. Second operand has 59 states, 59 states have (on average 3.016949152542373) internal successors, (178), 58 states have internal predecessors, (178), 57 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-01-31 19:48:54,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:48:54,165 INFO L93 Difference]: Finished difference Result 695 states and 809 transitions. [2022-01-31 19:48:54,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-01-31 19:48:54,166 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.016949152542373) internal successors, (178), 58 states have internal predecessors, (178), 57 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 555 [2022-01-31 19:48:54,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:48:54,168 INFO L225 Difference]: With dead ends: 695 [2022-01-31 19:48:54,168 INFO L226 Difference]: Without dead ends: 574 [2022-01-31 19:48:54,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4905, Invalid=8205, Unknown=0, NotChecked=0, Total=13110 [2022-01-31 19:48:54,172 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1247 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 1381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1381 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 19:48:54,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 32 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1381 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 19:48:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-01-31 19:48:54,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 354. [2022-01-31 19:48:54,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 292 states have (on average 1.0102739726027397) internal successors, (295), 292 states have internal predecessors, (295), 58 states have call successors, (58), 4 states have call predecessors, (58), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-01-31 19:48:54,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 410 transitions. [2022-01-31 19:48:54,332 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 410 transitions. Word has length 555 [2022-01-31 19:48:54,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:48:54,332 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 410 transitions. [2022-01-31 19:48:54,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.016949152542373) internal successors, (178), 58 states have internal predecessors, (178), 57 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-01-31 19:48:54,333 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 410 transitions. [2022-01-31 19:48:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-01-31 19:48:54,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:48:54,335 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:48:54,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 19:48:54,335 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:48:54,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:48:54,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1754823667, now seen corresponding path program 55 times [2022-01-31 19:48:54,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:48:54,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317153369] [2022-01-31 19:48:54,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:48:54,339 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:48:54,339 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:48:54,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:48:54,346 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:48:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:48:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:48:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:48:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:48:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:48:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:48:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:48:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:48:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:48:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:48:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:48:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:48:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:48:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:48:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:48:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:48:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:48:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:48:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:48:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:48:55,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:48:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:48:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:48:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:48:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:48:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:48:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:48:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:48:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:48:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:48:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:48:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:48:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:48:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:48:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:48:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:48:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:48:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:48:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:48:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:48:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:48:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:48:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:48:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:48:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:48:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:48:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:48:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:48:55,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:48:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:48:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:48:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:48:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:48:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:48:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:48:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:48:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:48:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2022-01-31 19:48:55,638 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:48:55,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317153369] [2022-01-31 19:48:55,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1317153369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:48:55,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:48:55,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-01-31 19:48:55,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415935547] [2022-01-31 19:48:55,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:48:55,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-01-31 19:48:55,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:48:55,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-01-31 19:48:55,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1658, Invalid=1882, Unknown=0, NotChecked=0, Total=3540 [2022-01-31 19:48:55,641 INFO L87 Difference]: Start difference. First operand 354 states and 410 transitions. Second operand has 60 states, 60 states have (on average 3.0166666666666666) internal successors, (181), 59 states have internal predecessors, (181), 58 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-01-31 19:49:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:00,576 INFO L93 Difference]: Finished difference Result 707 states and 823 transitions. [2022-01-31 19:49:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-31 19:49:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.0166666666666666) internal successors, (181), 59 states have internal predecessors, (181), 58 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 565 [2022-01-31 19:49:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:00,578 INFO L225 Difference]: With dead ends: 707 [2022-01-31 19:49:00,578 INFO L226 Difference]: Without dead ends: 584 [2022-01-31 19:49:00,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1651 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=5078, Invalid=8494, Unknown=0, NotChecked=0, Total=13572 [2022-01-31 19:49:00,579 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1337 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:00,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1337 Valid, 24 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1473 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 19:49:00,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-01-31 19:49:00,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 360. [2022-01-31 19:49:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 297 states have (on average 1.0101010101010102) internal successors, (300), 297 states have internal predecessors, (300), 59 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-01-31 19:49:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 417 transitions. [2022-01-31 19:49:00,753 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 417 transitions. Word has length 565 [2022-01-31 19:49:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:00,753 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 417 transitions. [2022-01-31 19:49:00,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.0166666666666666) internal successors, (181), 59 states have internal predecessors, (181), 58 states have call successors, (58), 4 states have call predecessors, (58), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-01-31 19:49:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 417 transitions. [2022-01-31 19:49:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-01-31 19:49:00,755 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:00,755 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:00,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 19:49:00,756 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:00,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:00,756 INFO L85 PathProgramCache]: Analyzing trace with hash 544104304, now seen corresponding path program 56 times [2022-01-31 19:49:00,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:00,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356683981] [2022-01-31 19:49:00,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:00,758 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:00,758 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:00,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:00,764 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-01-31 19:49:02,061 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:02,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356683981] [2022-01-31 19:49:02,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [356683981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:02,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:02,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2022-01-31 19:49:02,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261607922] [2022-01-31 19:49:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:02,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-01-31 19:49:02,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-01-31 19:49:02,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1716, Invalid=1944, Unknown=0, NotChecked=0, Total=3660 [2022-01-31 19:49:02,064 INFO L87 Difference]: Start difference. First operand 360 states and 417 transitions. Second operand has 61 states, 61 states have (on average 3.0163934426229506) internal successors, (184), 60 states have internal predecessors, (184), 59 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-01-31 19:49:07,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:07,186 INFO L93 Difference]: Finished difference Result 719 states and 837 transitions. [2022-01-31 19:49:07,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-31 19:49:07,187 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 3.0163934426229506) internal successors, (184), 60 states have internal predecessors, (184), 59 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 575 [2022-01-31 19:49:07,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:07,189 INFO L225 Difference]: With dead ends: 719 [2022-01-31 19:49:07,189 INFO L226 Difference]: Without dead ends: 594 [2022-01-31 19:49:07,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1709 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5254, Invalid=8788, Unknown=0, NotChecked=0, Total=14042 [2022-01-31 19:49:07,190 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1336 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 1474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1474 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:07,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1336 Valid, 30 Invalid, 2664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1474 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 19:49:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2022-01-31 19:49:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 366. [2022-01-31 19:49:07,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 302 states have (on average 1.009933774834437) internal successors, (305), 302 states have internal predecessors, (305), 60 states have call successors, (60), 4 states have call predecessors, (60), 3 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-01-31 19:49:07,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 424 transitions. [2022-01-31 19:49:07,367 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 424 transitions. Word has length 575 [2022-01-31 19:49:07,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:07,367 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 424 transitions. [2022-01-31 19:49:07,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.0163934426229506) internal successors, (184), 60 states have internal predecessors, (184), 59 states have call successors, (59), 4 states have call predecessors, (59), 2 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-01-31 19:49:07,367 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 424 transitions. [2022-01-31 19:49:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2022-01-31 19:49:07,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:07,370 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:07,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-31 19:49:07,370 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:07,370 INFO L85 PathProgramCache]: Analyzing trace with hash -667269907, now seen corresponding path program 57 times [2022-01-31 19:49:07,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:07,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446821979] [2022-01-31 19:49:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:07,372 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:07,372 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:07,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:07,379 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2022-01-31 19:49:08,817 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:08,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446821979] [2022-01-31 19:49:08,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1446821979] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:08,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:08,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-01-31 19:49:08,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021012414] [2022-01-31 19:49:08,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:08,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-01-31 19:49:08,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:08,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-01-31 19:49:08,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1775, Invalid=2007, Unknown=0, NotChecked=0, Total=3782 [2022-01-31 19:49:08,819 INFO L87 Difference]: Start difference. First operand 366 states and 424 transitions. Second operand has 62 states, 62 states have (on average 3.0161290322580645) internal successors, (187), 61 states have internal predecessors, (187), 60 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-01-31 19:49:14,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:14,183 INFO L93 Difference]: Finished difference Result 731 states and 851 transitions. [2022-01-31 19:49:14,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-31 19:49:14,183 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.0161290322580645) internal successors, (187), 61 states have internal predecessors, (187), 60 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 585 [2022-01-31 19:49:14,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:14,185 INFO L225 Difference]: With dead ends: 731 [2022-01-31 19:49:14,185 INFO L226 Difference]: Without dead ends: 604 [2022-01-31 19:49:14,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1768 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5433, Invalid=9087, Unknown=0, NotChecked=0, Total=14520 [2022-01-31 19:49:14,186 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1586 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 1735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1735 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:14,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1586 Valid, 24 Invalid, 2658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1735 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 19:49:14,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-01-31 19:49:14,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 372. [2022-01-31 19:49:14,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 307 states have (on average 1.009771986970684) internal successors, (310), 307 states have internal predecessors, (310), 61 states have call successors, (61), 4 states have call predecessors, (61), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-01-31 19:49:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 431 transitions. [2022-01-31 19:49:14,364 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 431 transitions. Word has length 585 [2022-01-31 19:49:14,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:14,364 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 431 transitions. [2022-01-31 19:49:14,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.0161290322580645) internal successors, (187), 61 states have internal predecessors, (187), 60 states have call successors, (60), 4 states have call predecessors, (60), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-01-31 19:49:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 431 transitions. [2022-01-31 19:49:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-01-31 19:49:14,366 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:14,367 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:14,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-31 19:49:14,367 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2060706710, now seen corresponding path program 58 times [2022-01-31 19:49:14,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:14,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [190100796] [2022-01-31 19:49:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:14,369 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:14,369 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:14,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:14,376 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:15,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2022-01-31 19:49:15,755 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:15,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [190100796] [2022-01-31 19:49:15,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [190100796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:15,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:15,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2022-01-31 19:49:15,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066122749] [2022-01-31 19:49:15,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:15,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-01-31 19:49:15,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-01-31 19:49:15,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1835, Invalid=2071, Unknown=0, NotChecked=0, Total=3906 [2022-01-31 19:49:15,757 INFO L87 Difference]: Start difference. First operand 372 states and 431 transitions. Second operand has 63 states, 63 states have (on average 3.015873015873016) internal successors, (190), 62 states have internal predecessors, (190), 61 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-01-31 19:49:21,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:21,328 INFO L93 Difference]: Finished difference Result 743 states and 865 transitions. [2022-01-31 19:49:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-31 19:49:21,329 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.015873015873016) internal successors, (190), 62 states have internal predecessors, (190), 61 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 595 [2022-01-31 19:49:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:21,331 INFO L225 Difference]: With dead ends: 743 [2022-01-31 19:49:21,331 INFO L226 Difference]: Without dead ends: 614 [2022-01-31 19:49:21,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1828 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5615, Invalid=9391, Unknown=0, NotChecked=0, Total=15006 [2022-01-31 19:49:21,332 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1340 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 1490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1490 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:21,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 28 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1490 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 19:49:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2022-01-31 19:49:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 378. [2022-01-31 19:49:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 312 states have (on average 1.0096153846153846) internal successors, (315), 312 states have internal predecessors, (315), 62 states have call successors, (62), 4 states have call predecessors, (62), 3 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-01-31 19:49:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 438 transitions. [2022-01-31 19:49:21,524 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 438 transitions. Word has length 595 [2022-01-31 19:49:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:21,524 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 438 transitions. [2022-01-31 19:49:21,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.015873015873016) internal successors, (190), 62 states have internal predecessors, (190), 61 states have call successors, (61), 4 states have call predecessors, (61), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-01-31 19:49:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 438 transitions. [2022-01-31 19:49:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-01-31 19:49:21,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:21,527 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:21,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 19:49:21,527 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1819006439, now seen corresponding path program 59 times [2022-01-31 19:49:21,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:21,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611910631] [2022-01-31 19:49:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:21,529 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:21,529 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:21,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:21,536 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:49:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:22,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-01-31 19:49:22,978 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:22,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611910631] [2022-01-31 19:49:22,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1611910631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:22,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:22,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-01-31 19:49:22,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393265689] [2022-01-31 19:49:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:22,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-31 19:49:22,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:22,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-31 19:49:22,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1896, Invalid=2136, Unknown=0, NotChecked=0, Total=4032 [2022-01-31 19:49:22,981 INFO L87 Difference]: Start difference. First operand 378 states and 438 transitions. Second operand has 64 states, 64 states have (on average 3.015625) internal successors, (193), 63 states have internal predecessors, (193), 62 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-01-31 19:49:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:28,766 INFO L93 Difference]: Finished difference Result 755 states and 879 transitions. [2022-01-31 19:49:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-31 19:49:28,766 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.015625) internal successors, (193), 63 states have internal predecessors, (193), 62 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 605 [2022-01-31 19:49:28,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:28,768 INFO L225 Difference]: With dead ends: 755 [2022-01-31 19:49:28,768 INFO L226 Difference]: Without dead ends: 624 [2022-01-31 19:49:28,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5800, Invalid=9700, Unknown=0, NotChecked=0, Total=15500 [2022-01-31 19:49:28,769 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1384 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 1534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1534 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:28,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 34 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1534 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 19:49:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-01-31 19:49:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 384. [2022-01-31 19:49:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 317 states have (on average 1.0094637223974763) internal successors, (320), 317 states have internal predecessors, (320), 63 states have call successors, (63), 4 states have call predecessors, (63), 3 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-01-31 19:49:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 445 transitions. [2022-01-31 19:49:28,968 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 445 transitions. Word has length 605 [2022-01-31 19:49:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:28,968 INFO L470 AbstractCegarLoop]: Abstraction has 384 states and 445 transitions. [2022-01-31 19:49:28,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.015625) internal successors, (193), 63 states have internal predecessors, (193), 62 states have call successors, (62), 4 states have call predecessors, (62), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-01-31 19:49:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 445 transitions. [2022-01-31 19:49:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2022-01-31 19:49:28,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:28,971 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:28,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-31 19:49:28,971 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:28,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:28,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1410949476, now seen corresponding path program 60 times [2022-01-31 19:49:28,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:28,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179113535] [2022-01-31 19:49:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:28,973 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:28,973 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:28,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:28,981 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:49:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:49:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:30,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2022-01-31 19:49:30,472 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:30,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179113535] [2022-01-31 19:49:30,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [179113535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:30,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:30,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2022-01-31 19:49:30,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125891083] [2022-01-31 19:49:30,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:30,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-01-31 19:49:30,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:30,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-01-31 19:49:30,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1958, Invalid=2202, Unknown=0, NotChecked=0, Total=4160 [2022-01-31 19:49:30,474 INFO L87 Difference]: Start difference. First operand 384 states and 445 transitions. Second operand has 65 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 64 states have internal predecessors, (196), 63 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-01-31 19:49:36,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:36,371 INFO L93 Difference]: Finished difference Result 767 states and 893 transitions. [2022-01-31 19:49:36,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-01-31 19:49:36,383 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 64 states have internal predecessors, (196), 63 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 615 [2022-01-31 19:49:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:36,385 INFO L225 Difference]: With dead ends: 767 [2022-01-31 19:49:36,385 INFO L226 Difference]: Without dead ends: 634 [2022-01-31 19:49:36,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1951 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5988, Invalid=10014, Unknown=0, NotChecked=0, Total=16002 [2022-01-31 19:49:36,387 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1361 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 1517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:36,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 28 Invalid, 2657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1517 Valid, 1140 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 19:49:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-01-31 19:49:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 390. [2022-01-31 19:49:36,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 322 states have (on average 1.0093167701863355) internal successors, (325), 322 states have internal predecessors, (325), 64 states have call successors, (64), 4 states have call predecessors, (64), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-01-31 19:49:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 452 transitions. [2022-01-31 19:49:36,588 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 452 transitions. Word has length 615 [2022-01-31 19:49:36,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:36,588 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 452 transitions. [2022-01-31 19:49:36,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.0153846153846153) internal successors, (196), 64 states have internal predecessors, (196), 63 states have call successors, (63), 4 states have call predecessors, (63), 2 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-01-31 19:49:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 452 transitions. [2022-01-31 19:49:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2022-01-31 19:49:36,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:36,591 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:36,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 19:49:36,591 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1270042911, now seen corresponding path program 61 times [2022-01-31 19:49:36,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:36,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187164400] [2022-01-31 19:49:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:36,593 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:36,594 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:36,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:36,601 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:38,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:49:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:49:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:49:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2022-01-31 19:49:38,089 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:38,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187164400] [2022-01-31 19:49:38,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [187164400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:38,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:38,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-01-31 19:49:38,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029891842] [2022-01-31 19:49:38,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:38,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-01-31 19:49:38,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-01-31 19:49:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2021, Invalid=2269, Unknown=0, NotChecked=0, Total=4290 [2022-01-31 19:49:38,092 INFO L87 Difference]: Start difference. First operand 390 states and 452 transitions. Second operand has 66 states, 66 states have (on average 3.015151515151515) internal successors, (199), 65 states have internal predecessors, (199), 64 states have call successors, (64), 4 states have call predecessors, (64), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-01-31 19:49:44,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:44,330 INFO L93 Difference]: Finished difference Result 779 states and 907 transitions. [2022-01-31 19:49:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-31 19:49:44,331 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 3.015151515151515) internal successors, (199), 65 states have internal predecessors, (199), 64 states have call successors, (64), 4 states have call predecessors, (64), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 625 [2022-01-31 19:49:44,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:44,333 INFO L225 Difference]: With dead ends: 779 [2022-01-31 19:49:44,333 INFO L226 Difference]: Without dead ends: 644 [2022-01-31 19:49:44,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=6179, Invalid=10333, Unknown=0, NotChecked=0, Total=16512 [2022-01-31 19:49:44,334 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1542 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 1697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1697 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:44,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1542 Valid, 28 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1697 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 19:49:44,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-01-31 19:49:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 396. [2022-01-31 19:49:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 327 states have (on average 1.0091743119266054) internal successors, (330), 327 states have internal predecessors, (330), 65 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-01-31 19:49:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 459 transitions. [2022-01-31 19:49:44,556 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 459 transitions. Word has length 625 [2022-01-31 19:49:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:44,557 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 459 transitions. [2022-01-31 19:49:44,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.015151515151515) internal successors, (199), 65 states have internal predecessors, (199), 64 states have call successors, (64), 4 states have call predecessors, (64), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-01-31 19:49:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 459 transitions. [2022-01-31 19:49:44,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2022-01-31 19:49:44,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:44,560 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:44,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-31 19:49:44,561 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash -401232290, now seen corresponding path program 62 times [2022-01-31 19:49:44,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:44,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099347645] [2022-01-31 19:49:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:44,563 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:44,563 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:44,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:44,579 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:49:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:49:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:49:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:49:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2022-01-31 19:49:46,109 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:46,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099347645] [2022-01-31 19:49:46,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2099347645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:46,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:46,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2022-01-31 19:49:46,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774529349] [2022-01-31 19:49:46,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:46,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-01-31 19:49:46,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-01-31 19:49:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2085, Invalid=2337, Unknown=0, NotChecked=0, Total=4422 [2022-01-31 19:49:46,112 INFO L87 Difference]: Start difference. First operand 396 states and 459 transitions. Second operand has 67 states, 67 states have (on average 3.014925373134328) internal successors, (202), 66 states have internal predecessors, (202), 65 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-01-31 19:49:52,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:49:52,521 INFO L93 Difference]: Finished difference Result 791 states and 921 transitions. [2022-01-31 19:49:52,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-31 19:49:52,521 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.014925373134328) internal successors, (202), 66 states have internal predecessors, (202), 65 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 635 [2022-01-31 19:49:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:49:52,524 INFO L225 Difference]: With dead ends: 791 [2022-01-31 19:49:52,524 INFO L226 Difference]: Without dead ends: 654 [2022-01-31 19:49:52,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2078 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=6373, Invalid=10657, Unknown=0, NotChecked=0, Total=17030 [2022-01-31 19:49:52,525 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1443 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 1604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1443 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1604 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:49:52,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1443 Valid, 30 Invalid, 2785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1604 Valid, 1181 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 19:49:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-01-31 19:49:52,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 402. [2022-01-31 19:49:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 332 states have (on average 1.0090361445783131) internal successors, (335), 332 states have internal predecessors, (335), 66 states have call successors, (66), 4 states have call predecessors, (66), 3 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-01-31 19:49:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 466 transitions. [2022-01-31 19:49:52,763 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 466 transitions. Word has length 635 [2022-01-31 19:49:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:49:52,763 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 466 transitions. [2022-01-31 19:49:52,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.014925373134328) internal successors, (202), 66 states have internal predecessors, (202), 65 states have call successors, (65), 4 states have call predecessors, (65), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-01-31 19:49:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 466 transitions. [2022-01-31 19:49:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-01-31 19:49:52,766 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:49:52,766 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:49:52,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-31 19:49:52,766 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:49:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:49:52,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1585205211, now seen corresponding path program 63 times [2022-01-31 19:49:52,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:49:52,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827870024] [2022-01-31 19:49:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:49:52,769 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:49:52,769 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:49:52,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:49:52,778 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:49:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:49:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:49:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:49:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:49:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:49:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:49:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:49:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:49:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:49:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:49:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:49:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:49:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:49:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:49:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:49:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:49:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:49:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:49:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:49:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:49:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:49:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:49:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:49:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:49:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:49:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:49:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:49:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:49:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:49:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:49:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:49:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:49:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:49:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:49:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:49:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:49:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:49:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:49:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:49:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:49:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:49:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:49:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:49:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:49:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:49:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:49:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:49:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:49:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:49:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:49:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:49:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:49:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:49:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:49:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:49:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:49:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:49:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:49:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:49:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:49:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:49:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:49:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:49:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:49:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:49:54,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2022-01-31 19:49:54,449 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:49:54,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827870024] [2022-01-31 19:49:54,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [827870024] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:49:54,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:49:54,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-01-31 19:49:54,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019115374] [2022-01-31 19:49:54,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:49:54,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-01-31 19:49:54,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:49:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-01-31 19:49:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2150, Invalid=2406, Unknown=0, NotChecked=0, Total=4556 [2022-01-31 19:49:54,452 INFO L87 Difference]: Start difference. First operand 402 states and 466 transitions. Second operand has 68 states, 68 states have (on average 3.014705882352941) internal successors, (205), 67 states have internal predecessors, (205), 66 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-01-31 19:50:01,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:01,230 INFO L93 Difference]: Finished difference Result 803 states and 935 transitions. [2022-01-31 19:50:01,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-01-31 19:50:01,231 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.014705882352941) internal successors, (205), 67 states have internal predecessors, (205), 66 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 645 [2022-01-31 19:50:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:01,233 INFO L225 Difference]: With dead ends: 803 [2022-01-31 19:50:01,233 INFO L226 Difference]: Without dead ends: 664 [2022-01-31 19:50:01,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=6570, Invalid=10986, Unknown=0, NotChecked=0, Total=17556 [2022-01-31 19:50:01,234 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1586 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 1750 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1750 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:01,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1586 Valid, 24 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1750 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 19:50:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-01-31 19:50:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 408. [2022-01-31 19:50:01,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 337 states have (on average 1.0089020771513353) internal successors, (340), 337 states have internal predecessors, (340), 67 states have call successors, (67), 4 states have call predecessors, (67), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-01-31 19:50:01,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 473 transitions. [2022-01-31 19:50:01,462 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 473 transitions. Word has length 645 [2022-01-31 19:50:01,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:01,462 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 473 transitions. [2022-01-31 19:50:01,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.014705882352941) internal successors, (205), 67 states have internal predecessors, (205), 66 states have call successors, (66), 4 states have call predecessors, (66), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-01-31 19:50:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 473 transitions. [2022-01-31 19:50:01,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-01-31 19:50:01,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:01,465 INFO L514 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:01,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-31 19:50:01,466 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash -880770216, now seen corresponding path program 64 times [2022-01-31 19:50:01,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259286373] [2022-01-31 19:50:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:01,468 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:01,468 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:01,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:01,477 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:03,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2022-01-31 19:50:03,148 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:03,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259286373] [2022-01-31 19:50:03,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1259286373] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:03,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:03,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2022-01-31 19:50:03,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407282555] [2022-01-31 19:50:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:03,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-01-31 19:50:03,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-01-31 19:50:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2216, Invalid=2476, Unknown=0, NotChecked=0, Total=4692 [2022-01-31 19:50:03,151 INFO L87 Difference]: Start difference. First operand 408 states and 473 transitions. Second operand has 69 states, 69 states have (on average 3.0144927536231885) internal successors, (208), 68 states have internal predecessors, (208), 67 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-01-31 19:50:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:10,361 INFO L93 Difference]: Finished difference Result 815 states and 949 transitions. [2022-01-31 19:50:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-31 19:50:10,361 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 3.0144927536231885) internal successors, (208), 68 states have internal predecessors, (208), 67 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 655 [2022-01-31 19:50:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:10,363 INFO L225 Difference]: With dead ends: 815 [2022-01-31 19:50:10,363 INFO L226 Difference]: Without dead ends: 674 [2022-01-31 19:50:10,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2209 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=6770, Invalid=11320, Unknown=0, NotChecked=0, Total=18090 [2022-01-31 19:50:10,365 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1510 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 1676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1676 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:10,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1510 Valid, 30 Invalid, 2915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1676 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 19:50:10,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-01-31 19:50:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 414. [2022-01-31 19:50:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 342 states have (on average 1.0087719298245614) internal successors, (345), 342 states have internal predecessors, (345), 68 states have call successors, (68), 4 states have call predecessors, (68), 3 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-01-31 19:50:10,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 480 transitions. [2022-01-31 19:50:10,599 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 480 transitions. Word has length 655 [2022-01-31 19:50:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:10,599 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 480 transitions. [2022-01-31 19:50:10,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.0144927536231885) internal successors, (208), 68 states have internal predecessors, (208), 67 states have call successors, (67), 4 states have call predecessors, (67), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-01-31 19:50:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 480 transitions. [2022-01-31 19:50:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2022-01-31 19:50:10,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:10,603 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:10,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-31 19:50:10,603 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:10,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1494890709, now seen corresponding path program 65 times [2022-01-31 19:50:10,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:10,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78917772] [2022-01-31 19:50:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:10,605 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:10,605 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:10,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:10,614 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:12,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:50:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2022-01-31 19:50:12,335 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:12,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78917772] [2022-01-31 19:50:12,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [78917772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:12,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:12,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-01-31 19:50:12,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348205502] [2022-01-31 19:50:12,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:12,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-01-31 19:50:12,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:12,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-01-31 19:50:12,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2283, Invalid=2547, Unknown=0, NotChecked=0, Total=4830 [2022-01-31 19:50:12,337 INFO L87 Difference]: Start difference. First operand 414 states and 480 transitions. Second operand has 70 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 69 states have internal predecessors, (211), 68 states have call successors, (68), 4 states have call predecessors, (68), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-01-31 19:50:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:19,622 INFO L93 Difference]: Finished difference Result 827 states and 963 transitions. [2022-01-31 19:50:19,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-01-31 19:50:19,623 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 69 states have internal predecessors, (211), 68 states have call successors, (68), 4 states have call predecessors, (68), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 665 [2022-01-31 19:50:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:19,625 INFO L225 Difference]: With dead ends: 827 [2022-01-31 19:50:19,625 INFO L226 Difference]: Without dead ends: 684 [2022-01-31 19:50:19,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2276 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=6973, Invalid=11659, Unknown=0, NotChecked=0, Total=18632 [2022-01-31 19:50:19,626 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1529 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 1696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1696 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:19,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1529 Valid, 28 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1696 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 19:50:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-01-31 19:50:19,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 420. [2022-01-31 19:50:19,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 347 states have (on average 1.0086455331412103) internal successors, (350), 347 states have internal predecessors, (350), 69 states have call successors, (69), 4 states have call predecessors, (69), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-01-31 19:50:19,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 487 transitions. [2022-01-31 19:50:19,868 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 487 transitions. Word has length 665 [2022-01-31 19:50:19,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:19,868 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 487 transitions. [2022-01-31 19:50:19,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.0142857142857142) internal successors, (211), 69 states have internal predecessors, (211), 68 states have call successors, (68), 4 states have call predecessors, (68), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-01-31 19:50:19,868 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 487 transitions. [2022-01-31 19:50:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2022-01-31 19:50:19,871 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:19,871 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:19,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-01-31 19:50:19,872 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:19,872 INFO L85 PathProgramCache]: Analyzing trace with hash -667328430, now seen corresponding path program 66 times [2022-01-31 19:50:19,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:19,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375351805] [2022-01-31 19:50:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:19,874 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:19,874 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:19,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:19,882 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:50:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:50:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2022-01-31 19:50:21,642 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:21,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375351805] [2022-01-31 19:50:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [375351805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:21,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:21,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-01-31 19:50:21,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362369224] [2022-01-31 19:50:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:21,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-01-31 19:50:21,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:21,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-01-31 19:50:21,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=2619, Unknown=0, NotChecked=0, Total=4970 [2022-01-31 19:50:21,645 INFO L87 Difference]: Start difference. First operand 420 states and 487 transitions. Second operand has 71 states, 71 states have (on average 3.0140845070422535) internal successors, (214), 70 states have internal predecessors, (214), 69 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-01-31 19:50:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:29,227 INFO L93 Difference]: Finished difference Result 839 states and 977 transitions. [2022-01-31 19:50:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-01-31 19:50:29,228 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 3.0140845070422535) internal successors, (214), 70 states have internal predecessors, (214), 69 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Word has length 675 [2022-01-31 19:50:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:29,230 INFO L225 Difference]: With dead ends: 839 [2022-01-31 19:50:29,230 INFO L226 Difference]: Without dead ends: 694 [2022-01-31 19:50:29,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2344 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=7179, Invalid=12003, Unknown=0, NotChecked=0, Total=19182 [2022-01-31 19:50:29,231 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1539 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:29,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 34 Invalid, 3011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1714 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 19:50:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-01-31 19:50:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 426. [2022-01-31 19:50:29,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 352 states have (on average 1.0085227272727273) internal successors, (355), 352 states have internal predecessors, (355), 70 states have call successors, (70), 4 states have call predecessors, (70), 3 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-01-31 19:50:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 494 transitions. [2022-01-31 19:50:29,469 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 494 transitions. Word has length 675 [2022-01-31 19:50:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:29,469 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 494 transitions. [2022-01-31 19:50:29,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.0140845070422535) internal successors, (214), 70 states have internal predecessors, (214), 69 states have call successors, (69), 4 states have call predecessors, (69), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-01-31 19:50:29,470 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 494 transitions. [2022-01-31 19:50:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2022-01-31 19:50:29,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:29,473 INFO L514 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:29,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-01-31 19:50:29,473 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:29,473 INFO L85 PathProgramCache]: Analyzing trace with hash -238687793, now seen corresponding path program 67 times [2022-01-31 19:50:29,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:29,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028043698] [2022-01-31 19:50:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:29,475 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:29,475 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:29,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:29,485 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:50:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:50:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:50:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2022-01-31 19:50:31,286 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:31,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028043698] [2022-01-31 19:50:31,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2028043698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:31,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:31,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-01-31 19:50:31,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296490164] [2022-01-31 19:50:31,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:31,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-01-31 19:50:31,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-01-31 19:50:31,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2420, Invalid=2692, Unknown=0, NotChecked=0, Total=5112 [2022-01-31 19:50:31,288 INFO L87 Difference]: Start difference. First operand 426 states and 494 transitions. Second operand has 72 states, 72 states have (on average 3.013888888888889) internal successors, (217), 71 states have internal predecessors, (217), 70 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-01-31 19:50:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:39,167 INFO L93 Difference]: Finished difference Result 851 states and 991 transitions. [2022-01-31 19:50:39,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-01-31 19:50:39,167 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 3.013888888888889) internal successors, (217), 71 states have internal predecessors, (217), 70 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 685 [2022-01-31 19:50:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:39,170 INFO L225 Difference]: With dead ends: 851 [2022-01-31 19:50:39,170 INFO L226 Difference]: Without dead ends: 704 [2022-01-31 19:50:39,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2413 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=7388, Invalid=12352, Unknown=0, NotChecked=0, Total=19740 [2022-01-31 19:50:39,171 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1455 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 1631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1631 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:39,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 34 Invalid, 3072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1631 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 19:50:39,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-01-31 19:50:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 432. [2022-01-31 19:50:39,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 357 states have (on average 1.0084033613445378) internal successors, (360), 357 states have internal predecessors, (360), 71 states have call successors, (71), 4 states have call predecessors, (71), 3 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-01-31 19:50:39,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 501 transitions. [2022-01-31 19:50:39,416 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 501 transitions. Word has length 685 [2022-01-31 19:50:39,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:39,417 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 501 transitions. [2022-01-31 19:50:39,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.013888888888889) internal successors, (217), 71 states have internal predecessors, (217), 70 states have call successors, (70), 4 states have call predecessors, (70), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-01-31 19:50:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 501 transitions. [2022-01-31 19:50:39,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2022-01-31 19:50:39,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:39,420 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:39,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-01-31 19:50:39,420 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:39,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1470088524, now seen corresponding path program 68 times [2022-01-31 19:50:39,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:39,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769448500] [2022-01-31 19:50:39,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:39,423 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:39,423 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:39,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:39,433 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:50:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:50:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:50:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:50:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-01-31 19:50:41,252 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:41,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769448500] [2022-01-31 19:50:41,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1769448500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:41,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:41,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2022-01-31 19:50:41,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142239360] [2022-01-31 19:50:41,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:41,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-01-31 19:50:41,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:41,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-01-31 19:50:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2490, Invalid=2766, Unknown=0, NotChecked=0, Total=5256 [2022-01-31 19:50:41,254 INFO L87 Difference]: Start difference. First operand 432 states and 501 transitions. Second operand has 73 states, 73 states have (on average 3.0136986301369864) internal successors, (220), 72 states have internal predecessors, (220), 71 states have call successors, (71), 4 states have call predecessors, (71), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-01-31 19:50:49,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:49,204 INFO L93 Difference]: Finished difference Result 863 states and 1005 transitions. [2022-01-31 19:50:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-31 19:50:49,204 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 3.0136986301369864) internal successors, (220), 72 states have internal predecessors, (220), 71 states have call successors, (71), 4 states have call predecessors, (71), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Word has length 695 [2022-01-31 19:50:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:49,207 INFO L225 Difference]: With dead ends: 863 [2022-01-31 19:50:49,207 INFO L226 Difference]: Without dead ends: 714 [2022-01-31 19:50:49,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2483 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=7600, Invalid=12706, Unknown=0, NotChecked=0, Total=20306 [2022-01-31 19:50:49,208 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1645 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 1827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1827 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:49,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1645 Valid, 26 Invalid, 3026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1827 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 19:50:49,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-01-31 19:50:49,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 438. [2022-01-31 19:50:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 362 states have (on average 1.0082872928176796) internal successors, (365), 362 states have internal predecessors, (365), 72 states have call successors, (72), 4 states have call predecessors, (72), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-01-31 19:50:49,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 508 transitions. [2022-01-31 19:50:49,467 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 508 transitions. Word has length 695 [2022-01-31 19:50:49,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:49,467 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 508 transitions. [2022-01-31 19:50:49,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.0136986301369864) internal successors, (220), 72 states have internal predecessors, (220), 71 states have call successors, (71), 4 states have call predecessors, (71), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-01-31 19:50:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 508 transitions. [2022-01-31 19:50:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2022-01-31 19:50:49,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:49,471 INFO L514 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:49,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-01-31 19:50:49,471 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash -174136631, now seen corresponding path program 69 times [2022-01-31 19:50:49,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:49,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298016604] [2022-01-31 19:50:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:49,473 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:49,473 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:49,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:49,483 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:50:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:50:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:50:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:50:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:50:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:50:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:50:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:50:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:50:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:50:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:50:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:50:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:50:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:50:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:50:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:50:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:50:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:50:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:50:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:50:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:50:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:50:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:50:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:50:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:50:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:50:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:50:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:50:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:50:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:50:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:50:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:50:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:50:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:50:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:50:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:50:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:50:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:50:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:50:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:50:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:50:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:50:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:50:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:50:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:50:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:50:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:50:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:50:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:50:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:50:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:50:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:50:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:50:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:50:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:50:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:50:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:50:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:50:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:50:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:50:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:50:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:50:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:50:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:50:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:50:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:50:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:50:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:50:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:50:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:50:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:50:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:50:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2022-01-31 19:50:51,359 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:50:51,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298016604] [2022-01-31 19:50:51,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1298016604] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:50:51,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:50:51,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-01-31 19:50:51,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522775009] [2022-01-31 19:50:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:50:51,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-01-31 19:50:51,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:50:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-01-31 19:50:51,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2561, Invalid=2841, Unknown=0, NotChecked=0, Total=5402 [2022-01-31 19:50:51,362 INFO L87 Difference]: Start difference. First operand 438 states and 508 transitions. Second operand has 74 states, 74 states have (on average 3.0135135135135136) internal successors, (223), 73 states have internal predecessors, (223), 72 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-01-31 19:50:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:50:59,652 INFO L93 Difference]: Finished difference Result 875 states and 1019 transitions. [2022-01-31 19:50:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-01-31 19:50:59,652 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.0135135135135136) internal successors, (223), 73 states have internal predecessors, (223), 72 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Word has length 705 [2022-01-31 19:50:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:50:59,654 INFO L225 Difference]: With dead ends: 875 [2022-01-31 19:50:59,655 INFO L226 Difference]: Without dead ends: 724 [2022-01-31 19:50:59,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2554 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=7815, Invalid=13065, Unknown=0, NotChecked=0, Total=20880 [2022-01-31 19:50:59,656 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1790 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 1972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1972 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:50:59,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1790 Valid, 26 Invalid, 3188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1972 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 19:50:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-01-31 19:50:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 444. [2022-01-31 19:50:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 367 states have (on average 1.008174386920981) internal successors, (370), 367 states have internal predecessors, (370), 73 states have call successors, (73), 4 states have call predecessors, (73), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-01-31 19:50:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 515 transitions. [2022-01-31 19:50:59,914 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 515 transitions. Word has length 705 [2022-01-31 19:50:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:50:59,914 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 515 transitions. [2022-01-31 19:50:59,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.0135135135135136) internal successors, (223), 73 states have internal predecessors, (223), 72 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-01-31 19:50:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 515 transitions. [2022-01-31 19:50:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2022-01-31 19:50:59,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:50:59,917 INFO L514 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:50:59,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-01-31 19:50:59,917 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:50:59,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:50:59,918 INFO L85 PathProgramCache]: Analyzing trace with hash 580072006, now seen corresponding path program 70 times [2022-01-31 19:50:59,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:50:59,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732528389] [2022-01-31 19:50:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:50:59,920 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:50:59,920 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:50:59,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:50:59,930 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:51:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:51:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:51:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:51:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:51:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:51:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:51:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:51:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:51:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:51:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:51:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:51:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:51:01,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:51:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:51:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:51:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:51:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:51:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:51:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:51:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:51:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:51:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:51:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:51:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:51:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:51:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:51:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:51:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:51:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:51:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:51:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:51:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:51:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:51:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:51:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:51:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:51:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:51:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:51:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:51:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:51:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:51:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:51:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:51:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:51:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:51:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:51:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:51:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:51:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:51:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:51:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:51:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:51:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:51:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:51:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:51:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:51:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:51:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:51:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:51:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:51:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:51:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:51:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:51:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:51:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:51:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:51:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:51:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:51:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:51:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:51:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2022-01-31 19:51:01,863 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:51:01,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732528389] [2022-01-31 19:51:01,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1732528389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:51:01,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:51:01,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2022-01-31 19:51:01,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454128982] [2022-01-31 19:51:01,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:51:01,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-01-31 19:51:01,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:51:01,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-01-31 19:51:01,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2633, Invalid=2917, Unknown=0, NotChecked=0, Total=5550 [2022-01-31 19:51:01,866 INFO L87 Difference]: Start difference. First operand 444 states and 515 transitions. Second operand has 75 states, 75 states have (on average 3.013333333333333) internal successors, (226), 74 states have internal predecessors, (226), 73 states have call successors, (73), 4 states have call predecessors, (73), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-01-31 19:51:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:51:10,703 INFO L93 Difference]: Finished difference Result 887 states and 1033 transitions. [2022-01-31 19:51:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-01-31 19:51:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.013333333333333) internal successors, (226), 74 states have internal predecessors, (226), 73 states have call successors, (73), 4 states have call predecessors, (73), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Word has length 715 [2022-01-31 19:51:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:51:10,706 INFO L225 Difference]: With dead ends: 887 [2022-01-31 19:51:10,706 INFO L226 Difference]: Without dead ends: 734 [2022-01-31 19:51:10,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2626 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=8033, Invalid=13429, Unknown=0, NotChecked=0, Total=21462 [2022-01-31 19:51:10,707 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1568 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 1755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1755 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:51:10,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 32 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1755 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:51:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2022-01-31 19:51:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 450. [2022-01-31 19:51:11,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 372 states have (on average 1.0080645161290323) internal successors, (375), 372 states have internal predecessors, (375), 74 states have call successors, (74), 4 states have call predecessors, (74), 3 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-01-31 19:51:11,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 522 transitions. [2022-01-31 19:51:11,006 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 522 transitions. Word has length 715 [2022-01-31 19:51:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:51:11,006 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 522 transitions. [2022-01-31 19:51:11,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.013333333333333) internal successors, (226), 74 states have internal predecessors, (226), 73 states have call successors, (73), 4 states have call predecessors, (73), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-01-31 19:51:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 522 transitions. [2022-01-31 19:51:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2022-01-31 19:51:11,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:51:11,010 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:51:11,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-01-31 19:51:11,010 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:51:11,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:51:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash -784030781, now seen corresponding path program 71 times [2022-01-31 19:51:11,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:51:11,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081843898] [2022-01-31 19:51:11,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:51:11,012 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:51:11,012 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:51:11,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:51:11,023 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:51:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:51:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:51:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:51:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:51:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:51:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:51:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:51:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:51:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:51:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:51:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:51:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:51:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:51:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:51:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:51:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:51:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:51:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:51:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:51:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:51:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:51:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:51:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:51:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:51:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:51:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:51:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:51:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:51:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:51:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:51:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:51:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:51:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:51:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:51:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:51:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:51:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:51:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:51:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:51:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:51:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:51:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:51:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:51:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:51:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:51:12,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:51:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:51:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:51:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:51:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:51:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:51:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:51:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:51:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:51:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:51:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:51:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:51:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:51:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:51:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:51:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:51:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:51:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:51:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:51:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:51:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:51:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:51:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:51:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:51:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:51:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:51:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2022-01-31 19:51:12,985 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:51:12,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081843898] [2022-01-31 19:51:12,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2081843898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:51:12,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:51:12,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-01-31 19:51:12,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387076238] [2022-01-31 19:51:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:51:12,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-01-31 19:51:12,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:51:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-01-31 19:51:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2706, Invalid=2994, Unknown=0, NotChecked=0, Total=5700 [2022-01-31 19:51:12,987 INFO L87 Difference]: Start difference. First operand 450 states and 522 transitions. Second operand has 76 states, 76 states have (on average 3.013157894736842) internal successors, (229), 75 states have internal predecessors, (229), 74 states have call successors, (74), 4 states have call predecessors, (74), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-01-31 19:51:21,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:51:21,892 INFO L93 Difference]: Finished difference Result 899 states and 1047 transitions. [2022-01-31 19:51:21,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-01-31 19:51:21,892 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 3.013157894736842) internal successors, (229), 75 states have internal predecessors, (229), 74 states have call successors, (74), 4 states have call predecessors, (74), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Word has length 725 [2022-01-31 19:51:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:51:21,894 INFO L225 Difference]: With dead ends: 899 [2022-01-31 19:51:21,894 INFO L226 Difference]: Without dead ends: 744 [2022-01-31 19:51:21,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2699 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=8254, Invalid=13798, Unknown=0, NotChecked=0, Total=22052 [2022-01-31 19:51:21,896 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1690 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 1877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1877 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:51:21,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 32 Invalid, 3233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1877 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 19:51:21,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2022-01-31 19:51:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 456. [2022-01-31 19:51:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 377 states have (on average 1.0079575596816976) internal successors, (380), 377 states have internal predecessors, (380), 75 states have call successors, (75), 4 states have call predecessors, (75), 3 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-01-31 19:51:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 529 transitions. [2022-01-31 19:51:22,178 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 529 transitions. Word has length 725 [2022-01-31 19:51:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:51:22,179 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 529 transitions. [2022-01-31 19:51:22,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.013157894736842) internal successors, (229), 75 states have internal predecessors, (229), 74 states have call successors, (74), 4 states have call predecessors, (74), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-01-31 19:51:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 529 transitions. [2022-01-31 19:51:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2022-01-31 19:51:22,182 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:51:22,182 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:51:22,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-01-31 19:51:22,182 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:51:22,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:51:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1049417920, now seen corresponding path program 72 times [2022-01-31 19:51:22,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:51:22,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753418350] [2022-01-31 19:51:22,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:51:22,185 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:51:22,185 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:51:22,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:51:22,195 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:51:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:51:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:51:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:51:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:51:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:51:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:51:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:51:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:51:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:51:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:51:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:51:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:51:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:51:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:51:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:51:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:51:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:51:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:51:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:51:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:51:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:51:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:51:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:51:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:51:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:51:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:51:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:51:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:51:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:51:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:51:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:51:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:51:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:51:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:51:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:51:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:51:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:51:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:51:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:51:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:51:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:51:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:51:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:51:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:51:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:51:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:51:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:51:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:51:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:51:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:51:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:51:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:51:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:51:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:51:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:51:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:51:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:51:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:51:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:51:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:51:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:51:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:51:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:51:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:51:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:51:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:51:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:51:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:51:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:51:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:51:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:51:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:51:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:24,234 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2022-01-31 19:51:24,234 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:51:24,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753418350] [2022-01-31 19:51:24,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [753418350] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:51:24,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:51:24,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-01-31 19:51:24,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630984451] [2022-01-31 19:51:24,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:51:24,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-01-31 19:51:24,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:51:24,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-01-31 19:51:24,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2780, Invalid=3072, Unknown=0, NotChecked=0, Total=5852 [2022-01-31 19:51:24,237 INFO L87 Difference]: Start difference. First operand 456 states and 529 transitions. Second operand has 77 states, 77 states have (on average 3.012987012987013) internal successors, (232), 76 states have internal predecessors, (232), 75 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-01-31 19:51:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:51:33,476 INFO L93 Difference]: Finished difference Result 911 states and 1061 transitions. [2022-01-31 19:51:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-31 19:51:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.012987012987013) internal successors, (232), 76 states have internal predecessors, (232), 75 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Word has length 735 [2022-01-31 19:51:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:51:33,479 INFO L225 Difference]: With dead ends: 911 [2022-01-31 19:51:33,479 INFO L226 Difference]: Without dead ends: 754 [2022-01-31 19:51:33,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2773 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=8478, Invalid=14172, Unknown=0, NotChecked=0, Total=22650 [2022-01-31 19:51:33,480 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1716 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 1910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1910 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-31 19:51:33,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1716 Valid, 34 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1910 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-31 19:51:33,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-01-31 19:51:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 462. [2022-01-31 19:51:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 382 states have (on average 1.0078534031413613) internal successors, (385), 382 states have internal predecessors, (385), 76 states have call successors, (76), 4 states have call predecessors, (76), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-01-31 19:51:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 536 transitions. [2022-01-31 19:51:33,765 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 536 transitions. Word has length 735 [2022-01-31 19:51:33,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:51:33,766 INFO L470 AbstractCegarLoop]: Abstraction has 462 states and 536 transitions. [2022-01-31 19:51:33,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.012987012987013) internal successors, (232), 76 states have internal predecessors, (232), 75 states have call successors, (75), 4 states have call predecessors, (75), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-01-31 19:51:33,766 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 536 transitions. [2022-01-31 19:51:33,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2022-01-31 19:51:33,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:51:33,769 INFO L514 BasicCegarLoop]: trace histogram [73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:51:33,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-01-31 19:51:33,770 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:51:33,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:51:33,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1328108355, now seen corresponding path program 73 times [2022-01-31 19:51:33,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:51:33,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [92210396] [2022-01-31 19:51:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:51:33,772 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:51:33,772 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:51:33,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:51:33,783 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:33,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:51:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:51:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:51:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:51:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:51:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:51:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:51:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:51:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:51:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:51:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:51:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:51:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:51:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:51:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:51:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:51:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:51:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:51:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:51:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:51:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:51:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:51:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:51:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:51:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:51:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:51:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:51:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:51:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:51:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:51:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:51:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:51:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:51:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:51:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:51:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:51:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:51:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:51:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:51:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:51:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:51:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:51:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:51:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:51:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:51:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:51:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:51:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:51:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:51:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:51:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:51:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:51:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:51:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:51:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:51:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:51:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:51:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:51:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:51:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:51:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:51:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:51:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:51:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:51:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:51:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:51:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:51:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:51:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:51:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:51:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:51:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:51:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:51:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:51:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2022-01-31 19:51:35,798 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:51:35,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [92210396] [2022-01-31 19:51:35,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [92210396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:51:35,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:51:35,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-01-31 19:51:35,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159672568] [2022-01-31 19:51:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:51:35,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-01-31 19:51:35,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:51:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-01-31 19:51:35,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2855, Invalid=3151, Unknown=0, NotChecked=0, Total=6006 [2022-01-31 19:51:35,801 INFO L87 Difference]: Start difference. First operand 462 states and 536 transitions. Second operand has 78 states, 78 states have (on average 3.0128205128205128) internal successors, (235), 77 states have internal predecessors, (235), 76 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-01-31 19:51:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:51:45,162 INFO L93 Difference]: Finished difference Result 923 states and 1075 transitions. [2022-01-31 19:51:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-01-31 19:51:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 3.0128205128205128) internal successors, (235), 77 states have internal predecessors, (235), 76 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Word has length 745 [2022-01-31 19:51:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:51:45,165 INFO L225 Difference]: With dead ends: 923 [2022-01-31 19:51:45,165 INFO L226 Difference]: Without dead ends: 764 [2022-01-31 19:51:45,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2848 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=8705, Invalid=14551, Unknown=0, NotChecked=0, Total=23256 [2022-01-31 19:51:45,166 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1708 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 1901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1708 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1901 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:51:45,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1708 Valid, 28 Invalid, 3357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1901 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:51:45,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2022-01-31 19:51:45,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 468. [2022-01-31 19:51:45,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 387 states have (on average 1.0077519379844961) internal successors, (390), 387 states have internal predecessors, (390), 77 states have call successors, (77), 4 states have call predecessors, (77), 3 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-01-31 19:51:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 543 transitions. [2022-01-31 19:51:45,472 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 543 transitions. Word has length 745 [2022-01-31 19:51:45,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:51:45,472 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 543 transitions. [2022-01-31 19:51:45,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.0128205128205128) internal successors, (235), 77 states have internal predecessors, (235), 76 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-01-31 19:51:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 543 transitions. [2022-01-31 19:51:45,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2022-01-31 19:51:45,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:51:45,476 INFO L514 BasicCegarLoop]: trace histogram [74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:51:45,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-01-31 19:51:45,476 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:51:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:51:45,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1944116166, now seen corresponding path program 74 times [2022-01-31 19:51:45,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:51:45,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225726104] [2022-01-31 19:51:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:51:45,481 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:51:45,481 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:51:45,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:51:45,492 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:51:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:51:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:51:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:51:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:51:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:51:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:51:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:51:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:51:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:51:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:51:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:51:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:51:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:51:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:51:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:51:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:51:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:51:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:51:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:51:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:51:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:51:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:51:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:51:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:51:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:51:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:51:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:51:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:51:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:51:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:51:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:51:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:51:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:51:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:51:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:51:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:51:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:51:47,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:51:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:51:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:51:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:51:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:51:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:51:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:51:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:51:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:51:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:51:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:51:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:51:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:51:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:51:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:51:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:51:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:51:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:51:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:51:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:51:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:51:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:51:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:51:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:51:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:51:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:51:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:51:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:51:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:51:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:51:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:51:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:51:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:51:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:51:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:51:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:51:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:51:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:51:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2022-01-31 19:51:47,596 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:51:47,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225726104] [2022-01-31 19:51:47,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [225726104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:51:47,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:51:47,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2022-01-31 19:51:47,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686907303] [2022-01-31 19:51:47,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:51:47,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-01-31 19:51:47,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:51:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-01-31 19:51:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2931, Invalid=3231, Unknown=0, NotChecked=0, Total=6162 [2022-01-31 19:51:47,599 INFO L87 Difference]: Start difference. First operand 468 states and 543 transitions. Second operand has 79 states, 79 states have (on average 3.0126582278481013) internal successors, (238), 78 states have internal predecessors, (238), 77 states have call successors, (77), 4 states have call predecessors, (77), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-01-31 19:51:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:51:57,746 INFO L93 Difference]: Finished difference Result 935 states and 1089 transitions. [2022-01-31 19:51:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-31 19:51:57,746 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 3.0126582278481013) internal successors, (238), 78 states have internal predecessors, (238), 77 states have call successors, (77), 4 states have call predecessors, (77), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Word has length 755 [2022-01-31 19:51:57,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:51:57,748 INFO L225 Difference]: With dead ends: 935 [2022-01-31 19:51:57,748 INFO L226 Difference]: Without dead ends: 774 [2022-01-31 19:51:57,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2924 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=8935, Invalid=14935, Unknown=0, NotChecked=0, Total=23870 [2022-01-31 19:51:57,750 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1775 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 1972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1972 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:51:57,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1775 Valid, 32 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1972 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:51:57,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2022-01-31 19:51:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 474. [2022-01-31 19:51:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 392 states have (on average 1.0076530612244898) internal successors, (395), 392 states have internal predecessors, (395), 78 states have call successors, (78), 4 states have call predecessors, (78), 3 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-01-31 19:51:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 550 transitions. [2022-01-31 19:51:58,080 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 550 transitions. Word has length 755 [2022-01-31 19:51:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:51:58,080 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 550 transitions. [2022-01-31 19:51:58,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.0126582278481013) internal successors, (238), 78 states have internal predecessors, (238), 77 states have call successors, (77), 4 states have call predecessors, (77), 2 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-01-31 19:51:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 550 transitions. [2022-01-31 19:51:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2022-01-31 19:51:58,083 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:51:58,084 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:51:58,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-01-31 19:51:58,084 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:51:58,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:51:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1611366985, now seen corresponding path program 75 times [2022-01-31 19:51:58,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:51:58,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500451290] [2022-01-31 19:51:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:51:58,086 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:51:58,086 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:51:58,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:51:58,097 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:51:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:52:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:52:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:52:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:52:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:52:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:52:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:52:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:52:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:52:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:52:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:52:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:52:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:52:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:52:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:52:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:52:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:52:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:52:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:52:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:52:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:52:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:52:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:52:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:52:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:52:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:52:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:52:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:52:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:52:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:52:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:52:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:52:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:52:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:52:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:52:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:52:00,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:52:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:52:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:52:00,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:52:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:52:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:52:00,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:52:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:52:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:52:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:52:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:52:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:52:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:52:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:52:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:52:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:52:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:52:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:52:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:52:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:52:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:52:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:52:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:52:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:52:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:52:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:52:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:52:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:52:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:52:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:52:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:52:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:52:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:52:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:52:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:52:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:52:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:52:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:52:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:52:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:52:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2022-01-31 19:52:00,242 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:52:00,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500451290] [2022-01-31 19:52:00,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1500451290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:52:00,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:52:00,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-01-31 19:52:00,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489759208] [2022-01-31 19:52:00,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:52:00,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-01-31 19:52:00,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:52:00,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-01-31 19:52:00,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3008, Invalid=3312, Unknown=0, NotChecked=0, Total=6320 [2022-01-31 19:52:00,244 INFO L87 Difference]: Start difference. First operand 474 states and 550 transitions. Second operand has 80 states, 80 states have (on average 3.0125) internal successors, (241), 79 states have internal predecessors, (241), 78 states have call successors, (78), 4 states have call predecessors, (78), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-01-31 19:52:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:52:10,516 INFO L93 Difference]: Finished difference Result 947 states and 1103 transitions. [2022-01-31 19:52:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-01-31 19:52:10,516 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 3.0125) internal successors, (241), 79 states have internal predecessors, (241), 78 states have call successors, (78), 4 states have call predecessors, (78), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Word has length 765 [2022-01-31 19:52:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:52:10,518 INFO L225 Difference]: With dead ends: 947 [2022-01-31 19:52:10,518 INFO L226 Difference]: Without dead ends: 784 [2022-01-31 19:52:10,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3001 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=9168, Invalid=15324, Unknown=0, NotChecked=0, Total=24492 [2022-01-31 19:52:10,519 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1841 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 2040 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2040 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:52:10,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1841 Valid, 28 Invalid, 3379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2040 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:52:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-01-31 19:52:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 480. [2022-01-31 19:52:10,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 397 states have (on average 1.0075566750629723) internal successors, (400), 397 states have internal predecessors, (400), 79 states have call successors, (79), 4 states have call predecessors, (79), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-01-31 19:52:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 557 transitions. [2022-01-31 19:52:10,836 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 557 transitions. Word has length 765 [2022-01-31 19:52:10,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:52:10,837 INFO L470 AbstractCegarLoop]: Abstraction has 480 states and 557 transitions. [2022-01-31 19:52:10,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.0125) internal successors, (241), 79 states have internal predecessors, (241), 78 states have call successors, (78), 4 states have call predecessors, (78), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-01-31 19:52:10,837 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 557 transitions. [2022-01-31 19:52:10,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2022-01-31 19:52:10,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:52:10,841 INFO L514 BasicCegarLoop]: trace histogram [76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:52:10,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-01-31 19:52:10,841 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:52:10,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:52:10,841 INFO L85 PathProgramCache]: Analyzing trace with hash -906581708, now seen corresponding path program 76 times [2022-01-31 19:52:10,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:52:10,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643326408] [2022-01-31 19:52:10,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:52:10,843 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:52:10,843 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:52:10,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:52:10,854 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:52:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:52:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:52:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:52:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:52:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:52:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:52:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:52:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:52:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:52:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:52:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:52:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:52:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:52:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:52:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:52:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:52:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:52:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:52:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:52:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:52:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:52:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:52:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:52:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:52:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:52:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:52:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:52:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:52:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:52:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:52:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:52:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:52:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:52:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:52:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:52:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:52:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:52:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:52:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:52:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:52:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:52:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:52:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:52:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:52:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:52:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:52:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:52:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:52:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:52:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:52:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:52:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:52:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:52:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:52:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:52:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:52:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:52:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:52:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:52:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:52:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:52:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:52:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:52:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:52:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:52:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:52:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:52:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:52:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:52:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:52:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:52:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:52:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:52:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:52:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:52:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:52:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:52:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2022-01-31 19:52:13,067 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:52:13,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643326408] [2022-01-31 19:52:13,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1643326408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:52:13,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:52:13,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2022-01-31 19:52:13,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552767900] [2022-01-31 19:52:13,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:52:13,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-01-31 19:52:13,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:52:13,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-01-31 19:52:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3086, Invalid=3394, Unknown=0, NotChecked=0, Total=6480 [2022-01-31 19:52:13,070 INFO L87 Difference]: Start difference. First operand 480 states and 557 transitions. Second operand has 81 states, 81 states have (on average 3.0123456790123457) internal successors, (244), 80 states have internal predecessors, (244), 79 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-01-31 19:52:23,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:52:23,799 INFO L93 Difference]: Finished difference Result 959 states and 1117 transitions. [2022-01-31 19:52:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-01-31 19:52:23,799 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 3.0123456790123457) internal successors, (244), 80 states have internal predecessors, (244), 79 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Word has length 775 [2022-01-31 19:52:23,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:52:23,801 INFO L225 Difference]: With dead ends: 959 [2022-01-31 19:52:23,801 INFO L226 Difference]: Without dead ends: 794 [2022-01-31 19:52:23,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3079 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=9404, Invalid=15718, Unknown=0, NotChecked=0, Total=25122 [2022-01-31 19:52:23,802 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1953 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 2154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2154 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:52:23,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1953 Valid, 28 Invalid, 3643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2154 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 19:52:23,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-01-31 19:52:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 486. [2022-01-31 19:52:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 402 states have (on average 1.007462686567164) internal successors, (405), 402 states have internal predecessors, (405), 80 states have call successors, (80), 4 states have call predecessors, (80), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-01-31 19:52:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 564 transitions. [2022-01-31 19:52:24,125 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 564 transitions. Word has length 775 [2022-01-31 19:52:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:52:24,126 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 564 transitions. [2022-01-31 19:52:24,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.0123456790123457) internal successors, (244), 80 states have internal predecessors, (244), 79 states have call successors, (79), 4 states have call predecessors, (79), 2 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-01-31 19:52:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 564 transitions. [2022-01-31 19:52:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2022-01-31 19:52:24,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:52:24,130 INFO L514 BasicCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:52:24,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-01-31 19:52:24,130 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:52:24,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:52:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1447192911, now seen corresponding path program 77 times [2022-01-31 19:52:24,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:52:24,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991115790] [2022-01-31 19:52:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:52:24,135 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:52:24,135 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:52:24,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:52:24,146 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:52:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:52:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:52:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:52:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:52:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:52:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:52:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:52:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:52:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:52:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:52:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:52:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:52:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:52:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:52:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:52:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:52:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:52:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:52:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:52:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:52:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:52:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:52:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:52:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:52:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:52:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:52:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:52:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:52:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:52:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:52:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:52:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:52:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:52:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:52:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:52:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:52:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:52:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:52:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:52:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:52:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:52:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:52:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:52:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:52:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:52:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:52:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:52:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:52:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:52:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:52:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:52:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:52:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:52:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:52:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:52:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:52:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:52:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:52:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:52:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:52:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:52:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:52:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:52:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:52:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:52:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:52:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:52:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:52:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:52:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:52:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:52:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:52:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:52:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:52:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:52:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:52:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:52:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:52:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:26,389 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2022-01-31 19:52:26,389 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:52:26,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991115790] [2022-01-31 19:52:26,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [991115790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:52:26,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:52:26,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-01-31 19:52:26,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129577558] [2022-01-31 19:52:26,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:52:26,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-01-31 19:52:26,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:52:26,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-01-31 19:52:26,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3165, Invalid=3477, Unknown=0, NotChecked=0, Total=6642 [2022-01-31 19:52:26,392 INFO L87 Difference]: Start difference. First operand 486 states and 564 transitions. Second operand has 82 states, 82 states have (on average 3.0121951219512195) internal successors, (247), 81 states have internal predecessors, (247), 80 states have call successors, (80), 4 states have call predecessors, (80), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-01-31 19:52:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:52:37,307 INFO L93 Difference]: Finished difference Result 971 states and 1131 transitions. [2022-01-31 19:52:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-01-31 19:52:37,308 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 3.0121951219512195) internal successors, (247), 81 states have internal predecessors, (247), 80 states have call successors, (80), 4 states have call predecessors, (80), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Word has length 785 [2022-01-31 19:52:37,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:52:37,309 INFO L225 Difference]: With dead ends: 971 [2022-01-31 19:52:37,309 INFO L226 Difference]: Without dead ends: 804 [2022-01-31 19:52:37,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3158 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=9643, Invalid=16117, Unknown=0, NotChecked=0, Total=25760 [2022-01-31 19:52:37,311 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1697 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 1901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1901 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:52:37,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 30 Invalid, 3430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1901 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:52:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-01-31 19:52:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 492. [2022-01-31 19:52:37,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 407 states have (on average 1.0073710073710074) internal successors, (410), 407 states have internal predecessors, (410), 81 states have call successors, (81), 4 states have call predecessors, (81), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-01-31 19:52:37,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 571 transitions. [2022-01-31 19:52:37,642 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 571 transitions. Word has length 785 [2022-01-31 19:52:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:52:37,643 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 571 transitions. [2022-01-31 19:52:37,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 3.0121951219512195) internal successors, (247), 81 states have internal predecessors, (247), 80 states have call successors, (80), 4 states have call predecessors, (80), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-01-31 19:52:37,643 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 571 transitions. [2022-01-31 19:52:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2022-01-31 19:52:37,646 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:52:37,647 INFO L514 BasicCegarLoop]: trace histogram [78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:52:37,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-01-31 19:52:37,647 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:52:37,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:52:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash -774293970, now seen corresponding path program 78 times [2022-01-31 19:52:37,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:52:37,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681262926] [2022-01-31 19:52:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:52:37,649 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:52:37,649 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:52:37,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:52:37,662 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:52:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:52:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:52:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:52:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:52:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:52:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:52:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:52:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:52:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:52:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:52:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:52:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:52:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:52:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:52:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:52:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:52:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:52:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:52:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:52:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:52:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:52:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:52:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:52:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:52:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:52:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:52:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:52:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:52:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:52:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:52:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:52:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:52:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:52:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:52:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:52:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:52:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:52:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:52:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:52:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:52:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:52:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:52:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:52:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:52:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:52:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:52:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:52:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:52:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:52:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:52:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:52:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:52:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:52:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:52:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:52:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:52:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:52:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:52:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:52:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:52:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:52:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:52:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:52:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:52:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:52:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:52:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:52:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:52:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:52:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:52:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:52:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:52:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:52:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:52:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:52:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:52:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:52:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:52:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:52:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:39,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2022-01-31 19:52:39,963 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:52:39,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681262926] [2022-01-31 19:52:39,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [681262926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:52:39,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:52:39,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [] total 83 [2022-01-31 19:52:39,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458427849] [2022-01-31 19:52:39,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:52:39,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-01-31 19:52:39,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:52:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-01-31 19:52:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3245, Invalid=3561, Unknown=0, NotChecked=0, Total=6806 [2022-01-31 19:52:39,965 INFO L87 Difference]: Start difference. First operand 492 states and 571 transitions. Second operand has 83 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 82 states have internal predecessors, (250), 81 states have call successors, (81), 4 states have call predecessors, (81), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-01-31 19:52:51,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:52:51,408 INFO L93 Difference]: Finished difference Result 983 states and 1145 transitions. [2022-01-31 19:52:51,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-01-31 19:52:51,409 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 82 states have internal predecessors, (250), 81 states have call successors, (81), 4 states have call predecessors, (81), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Word has length 795 [2022-01-31 19:52:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:52:51,410 INFO L225 Difference]: With dead ends: 983 [2022-01-31 19:52:51,411 INFO L226 Difference]: Without dead ends: 814 [2022-01-31 19:52:51,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3238 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=9885, Invalid=16521, Unknown=0, NotChecked=0, Total=26406 [2022-01-31 19:52:51,412 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1818 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 2024 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1818 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 3743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2024 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-31 19:52:51,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1818 Valid, 36 Invalid, 3743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2024 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-31 19:52:51,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-01-31 19:52:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 498. [2022-01-31 19:52:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 412 states have (on average 1.0072815533980584) internal successors, (415), 412 states have internal predecessors, (415), 82 states have call successors, (82), 4 states have call predecessors, (82), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-01-31 19:52:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 578 transitions. [2022-01-31 19:52:51,759 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 578 transitions. Word has length 795 [2022-01-31 19:52:51,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:52:51,759 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 578 transitions. [2022-01-31 19:52:51,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 82 states have internal predecessors, (250), 81 states have call successors, (81), 4 states have call predecessors, (81), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-01-31 19:52:51,759 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 578 transitions. [2022-01-31 19:52:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2022-01-31 19:52:51,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:52:51,763 INFO L514 BasicCegarLoop]: trace histogram [79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:52:51,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-01-31 19:52:51,763 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:52:51,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:52:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash -120490069, now seen corresponding path program 79 times [2022-01-31 19:52:51,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:52:51,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034568388] [2022-01-31 19:52:51,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:52:51,766 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:52:51,766 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:52:51,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:52:51,778 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:52:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:52:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:52:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:52:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:52:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:52:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:52:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:52:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:52:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:52:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:52:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:52:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:52:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:52:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:52:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:52:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:52:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:52:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:52:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:52:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:52:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:52:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:52:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:52:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:52:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:52:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:52:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:52:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:52:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:52:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:52:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:52:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:52:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:52:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:52:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:52:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:52:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:52:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:52:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:52:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:52:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:52:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:52:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:52:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:52:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:52:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:52:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:52:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:52:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:52:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:52:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:52:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:52:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:52:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:52:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:52:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:52:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:52:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:52:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:52:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:52:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:52:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:52:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:52:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:52:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:52:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:52:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:52:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:52:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:52:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:52:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:52:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:52:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:52:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:52:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:52:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:52:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:52:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:52:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:52:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:52:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:52:54,163 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2022-01-31 19:52:54,163 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:52:54,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034568388] [2022-01-31 19:52:54,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2034568388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:52:54,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:52:54,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-01-31 19:52:54,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988095073] [2022-01-31 19:52:54,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:52:54,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-01-31 19:52:54,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:52:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-01-31 19:52:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3326, Invalid=3646, Unknown=0, NotChecked=0, Total=6972 [2022-01-31 19:52:54,166 INFO L87 Difference]: Start difference. First operand 498 states and 578 transitions. Second operand has 84 states, 84 states have (on average 3.011904761904762) internal successors, (253), 83 states have internal predecessors, (253), 82 states have call successors, (82), 4 states have call predecessors, (82), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-01-31 19:53:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:53:06,017 INFO L93 Difference]: Finished difference Result 995 states and 1159 transitions. [2022-01-31 19:53:06,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-31 19:53:06,017 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 3.011904761904762) internal successors, (253), 83 states have internal predecessors, (253), 82 states have call successors, (82), 4 states have call predecessors, (82), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) Word has length 805 [2022-01-31 19:53:06,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:53:06,019 INFO L225 Difference]: With dead ends: 995 [2022-01-31 19:53:06,019 INFO L226 Difference]: Without dead ends: 824 [2022-01-31 19:53:06,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3319 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=10130, Invalid=16930, Unknown=0, NotChecked=0, Total=27060 [2022-01-31 19:53:06,020 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1747 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 1959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1959 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-31 19:53:06,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1747 Valid, 30 Invalid, 3468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1959 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-31 19:53:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-01-31 19:53:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 504. [2022-01-31 19:53:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 417 states have (on average 1.0071942446043165) internal successors, (420), 417 states have internal predecessors, (420), 83 states have call successors, (83), 4 states have call predecessors, (83), 3 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2022-01-31 19:53:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 585 transitions. [2022-01-31 19:53:06,374 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 585 transitions. Word has length 805 [2022-01-31 19:53:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:53:06,375 INFO L470 AbstractCegarLoop]: Abstraction has 504 states and 585 transitions. [2022-01-31 19:53:06,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 3.011904761904762) internal successors, (253), 83 states have internal predecessors, (253), 82 states have call successors, (82), 4 states have call predecessors, (82), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-01-31 19:53:06,375 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 585 transitions. [2022-01-31 19:53:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2022-01-31 19:53:06,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:53:06,379 INFO L514 BasicCegarLoop]: trace histogram [80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:53:06,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-01-31 19:53:06,379 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:53:06,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:53:06,379 INFO L85 PathProgramCache]: Analyzing trace with hash 707152680, now seen corresponding path program 80 times [2022-01-31 19:53:06,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:53:06,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119990292] [2022-01-31 19:53:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:53:06,381 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:53:06,381 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:53:06,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:53:06,395 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:53:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:53:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:53:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:53:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:53:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:53:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:53:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:53:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:53:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:53:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:53:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:53:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:53:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:53:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:53:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:53:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:53:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:53:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:53:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:53:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:53:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:53:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:53:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:53:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:53:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:53:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:53:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:53:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:53:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:53:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:53:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:53:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:53:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:53:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:53:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:53:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:53:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:53:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:53:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:53:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:53:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:53:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:53:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:53:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:53:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:53:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:53:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:53:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:53:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:53:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:53:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:53:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:53:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:53:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:53:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:53:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:53:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:53:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:53:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:53:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:53:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:53:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:53:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:53:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:53:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:53:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:53:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:53:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:53:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:53:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:53:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:53:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:53:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:53:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:53:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:53:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:53:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:53:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:53:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:53:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:53:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:53:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12640 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2022-01-31 19:53:08,835 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:53:08,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119990292] [2022-01-31 19:53:08,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1119990292] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:53:08,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:53:08,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [] total 85 [2022-01-31 19:53:08,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42637266] [2022-01-31 19:53:08,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:53:08,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-01-31 19:53:08,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:53:08,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-01-31 19:53:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3408, Invalid=3732, Unknown=0, NotChecked=0, Total=7140 [2022-01-31 19:53:08,837 INFO L87 Difference]: Start difference. First operand 504 states and 585 transitions. Second operand has 85 states, 85 states have (on average 3.011764705882353) internal successors, (256), 84 states have internal predecessors, (256), 83 states have call successors, (83), 4 states have call predecessors, (83), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-01-31 19:53:21,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:53:21,749 INFO L93 Difference]: Finished difference Result 1007 states and 1173 transitions. [2022-01-31 19:53:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-01-31 19:53:21,750 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 3.011764705882353) internal successors, (256), 84 states have internal predecessors, (256), 83 states have call successors, (83), 4 states have call predecessors, (83), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Word has length 815 [2022-01-31 19:53:21,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:53:21,752 INFO L225 Difference]: With dead ends: 1007 [2022-01-31 19:53:21,752 INFO L226 Difference]: Without dead ends: 834 [2022-01-31 19:53:21,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3401 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=10378, Invalid=17344, Unknown=0, NotChecked=0, Total=27722 [2022-01-31 19:53:21,753 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1930 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 2143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2143 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:53:21,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 26 Invalid, 3919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2143 Valid, 1776 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 19:53:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-01-31 19:53:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 510. [2022-01-31 19:53:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 422 states have (on average 1.0071090047393365) internal successors, (425), 422 states have internal predecessors, (425), 84 states have call successors, (84), 4 states have call predecessors, (84), 3 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-01-31 19:53:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 592 transitions. [2022-01-31 19:53:22,169 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 592 transitions. Word has length 815 [2022-01-31 19:53:22,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:53:22,170 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 592 transitions. [2022-01-31 19:53:22,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 3.011764705882353) internal successors, (256), 84 states have internal predecessors, (256), 83 states have call successors, (83), 4 states have call predecessors, (83), 2 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2022-01-31 19:53:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 592 transitions. [2022-01-31 19:53:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2022-01-31 19:53:22,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:53:22,174 INFO L514 BasicCegarLoop]: trace histogram [81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:53:22,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-01-31 19:53:22,174 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:53:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:53:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash -145776475, now seen corresponding path program 81 times [2022-01-31 19:53:22,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:53:22,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025900603] [2022-01-31 19:53:22,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:53:22,176 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:53:22,176 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:53:22,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:53:22,192 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:53:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:53:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:53:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:53:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:53:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:53:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:53:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:53:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:53:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:53:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:53:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:53:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:53:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:53:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:53:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:53:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:53:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:53:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:53:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:53:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:53:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:53:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:53:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:53:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:53:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:53:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:53:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:53:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:53:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:53:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:53:24,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:53:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:53:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:53:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:53:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:53:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:53:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:53:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:53:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:53:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:53:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:53:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:53:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:53:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:53:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:53:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:53:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:53:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:53:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:53:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:53:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:53:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:53:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:53:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:53:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:53:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:53:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:53:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:53:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:53:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:53:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:53:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:53:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:53:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:53:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:53:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:53:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:53:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:53:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:53:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:53:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:53:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:53:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:53:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:53:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:53:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:53:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:53:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:53:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:53:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:53:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:53:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:53:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2022-01-31 19:53:24,723 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:53:24,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025900603] [2022-01-31 19:53:24,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1025900603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:53:24,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:53:24,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-01-31 19:53:24,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63292342] [2022-01-31 19:53:24,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:53:24,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-01-31 19:53:24,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:53:24,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-01-31 19:53:24,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3491, Invalid=3819, Unknown=0, NotChecked=0, Total=7310 [2022-01-31 19:53:24,725 INFO L87 Difference]: Start difference. First operand 510 states and 592 transitions. Second operand has 86 states, 86 states have (on average 3.011627906976744) internal successors, (259), 85 states have internal predecessors, (259), 84 states have call successors, (84), 4 states have call predecessors, (84), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2022-01-31 19:53:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:53:38,077 INFO L93 Difference]: Finished difference Result 1019 states and 1187 transitions. [2022-01-31 19:53:38,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-01-31 19:53:38,078 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 3.011627906976744) internal successors, (259), 85 states have internal predecessors, (259), 84 states have call successors, (84), 4 states have call predecessors, (84), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) Word has length 825 [2022-01-31 19:53:38,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:53:38,079 INFO L225 Difference]: With dead ends: 1019 [2022-01-31 19:53:38,079 INFO L226 Difference]: Without dead ends: 844 [2022-01-31 19:53:38,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3484 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=10629, Invalid=17763, Unknown=0, NotChecked=0, Total=28392 [2022-01-31 19:53:38,081 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1763 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1978 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-01-31 19:53:38,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1763 Valid, 36 Invalid, 3642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1978 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-01-31 19:53:38,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-01-31 19:53:38,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 516. [2022-01-31 19:53:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 427 states have (on average 1.0070257611241218) internal successors, (430), 427 states have internal predecessors, (430), 85 states have call successors, (85), 4 states have call predecessors, (85), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-01-31 19:53:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 599 transitions. [2022-01-31 19:53:38,448 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 599 transitions. Word has length 825 [2022-01-31 19:53:38,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:53:38,448 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 599 transitions. [2022-01-31 19:53:38,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 3.011627906976744) internal successors, (259), 85 states have internal predecessors, (259), 84 states have call successors, (84), 4 states have call predecessors, (84), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2022-01-31 19:53:38,448 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 599 transitions. [2022-01-31 19:53:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2022-01-31 19:53:38,452 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:53:38,453 INFO L514 BasicCegarLoop]: trace histogram [82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:53:38,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-01-31 19:53:38,453 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:53:38,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:53:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1463982046, now seen corresponding path program 82 times [2022-01-31 19:53:38,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:53:38,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822358874] [2022-01-31 19:53:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:53:38,455 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:53:38,455 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:53:38,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:53:38,469 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:53:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:53:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:53:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:53:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:53:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:53:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:53:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:53:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:53:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:53:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:53:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:53:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:53:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:53:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:53:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:53:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:53:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:53:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:53:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:53:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:53:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:53:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:53:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:53:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:53:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:40,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:53:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:53:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:53:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:53:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:53:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:53:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:53:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:53:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:53:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:53:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:53:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:53:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:53:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:53:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:53:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:53:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:53:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:53:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:53:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:53:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:53:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:53:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:53:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:53:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:53:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:53:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:53:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:53:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:53:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:53:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:53:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:53:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:53:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:53:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:53:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:53:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:53:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:53:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:53:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:53:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:53:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:53:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:53:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:53:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:53:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:53:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:53:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:53:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:53:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:53:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:53:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:53:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:53:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:53:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:53:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:53:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:53:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:53:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:53:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2022-01-31 19:53:41,077 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:53:41,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822358874] [2022-01-31 19:53:41,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1822358874] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:53:41,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:53:41,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [87] imperfect sequences [] total 87 [2022-01-31 19:53:41,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229071720] [2022-01-31 19:53:41,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:53:41,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-01-31 19:53:41,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:53:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-01-31 19:53:41,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3575, Invalid=3907, Unknown=0, NotChecked=0, Total=7482 [2022-01-31 19:53:41,080 INFO L87 Difference]: Start difference. First operand 516 states and 599 transitions. Second operand has 87 states, 87 states have (on average 3.0114942528735633) internal successors, (262), 86 states have internal predecessors, (262), 85 states have call successors, (85), 4 states have call predecessors, (85), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-01-31 19:53:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:53:54,970 INFO L93 Difference]: Finished difference Result 1031 states and 1201 transitions. [2022-01-31 19:53:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-01-31 19:53:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.0114942528735633) internal successors, (262), 86 states have internal predecessors, (262), 85 states have call successors, (85), 4 states have call predecessors, (85), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) Word has length 835 [2022-01-31 19:53:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:53:54,973 INFO L225 Difference]: With dead ends: 1031 [2022-01-31 19:53:54,973 INFO L226 Difference]: Without dead ends: 854 [2022-01-31 19:53:54,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3568 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=10883, Invalid=18187, Unknown=0, NotChecked=0, Total=29070 [2022-01-31 19:53:54,975 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2106 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 2330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 3963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2330 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:53:54,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2106 Valid, 36 Invalid, 3963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2330 Valid, 1633 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:53:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-01-31 19:53:55,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 522. [2022-01-31 19:53:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 432 states have (on average 1.0069444444444444) internal successors, (435), 432 states have internal predecessors, (435), 86 states have call successors, (86), 4 states have call predecessors, (86), 3 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-01-31 19:53:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 606 transitions. [2022-01-31 19:53:55,373 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 606 transitions. Word has length 835 [2022-01-31 19:53:55,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:53:55,373 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 606 transitions. [2022-01-31 19:53:55,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.0114942528735633) internal successors, (262), 86 states have internal predecessors, (262), 85 states have call successors, (85), 4 states have call predecessors, (85), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-01-31 19:53:55,374 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 606 transitions. [2022-01-31 19:53:55,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 846 [2022-01-31 19:53:55,379 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:53:55,379 INFO L514 BasicCegarLoop]: trace histogram [83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:53:55,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-01-31 19:53:55,379 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:53:55,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:53:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1859621279, now seen corresponding path program 83 times [2022-01-31 19:53:55,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:53:55,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022129774] [2022-01-31 19:53:55,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:53:55,382 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:53:55,382 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:53:55,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:53:55,410 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:53:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:53:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:53:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:53:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:53:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:53:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:53:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:53:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:53:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:53:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:53:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:53:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:53:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:53:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:53:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:53:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:53:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:53:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:53:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:53:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:53:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:53:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:53:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:53:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:53:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:53:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:53:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:53:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:53:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:53:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:53:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:53:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:53:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:53:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:53:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:53:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:53:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:53:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:53:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:53:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:53:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:53:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:53:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:53:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:53:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:53:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:53:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:53:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:53:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:53:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:53:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:53:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:53:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:53:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:53:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:53:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:53:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:53:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:53:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:53:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:53:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:53:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:53:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:53:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:53:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:53:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:53:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:53:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:53:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:53:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:53:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:53:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:53:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:53:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:53:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:53:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:53:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:53:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:53:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:53:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:53:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:53:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:53:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:53:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:53:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:53:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 13612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2022-01-31 19:53:58,055 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:53:58,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022129774] [2022-01-31 19:53:58,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1022129774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:53:58,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:53:58,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-01-31 19:53:58,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655375468] [2022-01-31 19:53:58,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:53:58,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-01-31 19:53:58,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:53:58,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-01-31 19:53:58,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3660, Invalid=3996, Unknown=0, NotChecked=0, Total=7656 [2022-01-31 19:53:58,058 INFO L87 Difference]: Start difference. First operand 522 states and 606 transitions. Second operand has 88 states, 88 states have (on average 3.0113636363636362) internal successors, (265), 87 states have internal predecessors, (265), 86 states have call successors, (86), 4 states have call predecessors, (86), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-01-31 19:54:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:54:12,179 INFO L93 Difference]: Finished difference Result 1043 states and 1215 transitions. [2022-01-31 19:54:12,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-01-31 19:54:12,180 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 3.0113636363636362) internal successors, (265), 87 states have internal predecessors, (265), 86 states have call successors, (86), 4 states have call predecessors, (86), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Word has length 845 [2022-01-31 19:54:12,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:54:12,182 INFO L225 Difference]: With dead ends: 1043 [2022-01-31 19:54:12,182 INFO L226 Difference]: Without dead ends: 864 [2022-01-31 19:54:12,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3653 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=11140, Invalid=18616, Unknown=0, NotChecked=0, Total=29756 [2022-01-31 19:54:12,183 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2074 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1618 mSolverCounterSat, 2296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2296 IncrementalHoareTripleChecker+Valid, 1618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:54:12,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2074 Valid, 26 Invalid, 3914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2296 Valid, 1618 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:54:12,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-01-31 19:54:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 528. [2022-01-31 19:54:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 437 states have (on average 1.0068649885583525) internal successors, (440), 437 states have internal predecessors, (440), 87 states have call successors, (87), 4 states have call predecessors, (87), 3 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-01-31 19:54:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 613 transitions. [2022-01-31 19:54:12,599 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 613 transitions. Word has length 845 [2022-01-31 19:54:12,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:54:12,599 INFO L470 AbstractCegarLoop]: Abstraction has 528 states and 613 transitions. [2022-01-31 19:54:12,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 3.0113636363636362) internal successors, (265), 87 states have internal predecessors, (265), 86 states have call successors, (86), 4 states have call predecessors, (86), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2022-01-31 19:54:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 613 transitions. [2022-01-31 19:54:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2022-01-31 19:54:12,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:54:12,604 INFO L514 BasicCegarLoop]: trace histogram [84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:54:12,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-01-31 19:54:12,605 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:54:12,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:54:12,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1828844260, now seen corresponding path program 84 times [2022-01-31 19:54:12,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:54:12,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962473828] [2022-01-31 19:54:12,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:54:12,607 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:54:12,607 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:54:12,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:54:12,621 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:54:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:54:15,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:54:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:54:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:54:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:54:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:54:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:54:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:54:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:54:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:54:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:54:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:54:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:54:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:54:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:54:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:54:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:54:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:54:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:54:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:54:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:54:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:54:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:54:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:54:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:54:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:54:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:54:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:54:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:54:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:54:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:54:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:54:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:54:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:54:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:54:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:54:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:54:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:54:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:54:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:54:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:54:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:54:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:54:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:54:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:54:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:54:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:54:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:54:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:54:15,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:54:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:54:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:54:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:54:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:54:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:54:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:54:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:54:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:54:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:54:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:54:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:54:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:54:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:54:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:54:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:54:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:54:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:54:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:54:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:54:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:54:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:54:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:54:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:54:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:54:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:54:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:54:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:54:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:54:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:54:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:54:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:54:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:54:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:54:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:54:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:54:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2022-01-31 19:54:15,354 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:54:15,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962473828] [2022-01-31 19:54:15,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [962473828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:54:15,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:54:15,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [] total 89 [2022-01-31 19:54:15,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130433182] [2022-01-31 19:54:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:54:15,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-01-31 19:54:15,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:54:15,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-01-31 19:54:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3746, Invalid=4086, Unknown=0, NotChecked=0, Total=7832 [2022-01-31 19:54:15,357 INFO L87 Difference]: Start difference. First operand 528 states and 613 transitions. Second operand has 89 states, 89 states have (on average 3.0112359550561796) internal successors, (268), 88 states have internal predecessors, (268), 87 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-01-31 19:54:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:54:30,003 INFO L93 Difference]: Finished difference Result 1055 states and 1229 transitions. [2022-01-31 19:54:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-01-31 19:54:30,009 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 3.0112359550561796) internal successors, (268), 88 states have internal predecessors, (268), 87 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) Word has length 855 [2022-01-31 19:54:30,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:54:30,011 INFO L225 Difference]: With dead ends: 1055 [2022-01-31 19:54:30,011 INFO L226 Difference]: Without dead ends: 874 [2022-01-31 19:54:30,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3739 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=11400, Invalid=19050, Unknown=0, NotChecked=0, Total=30450 [2022-01-31 19:54:30,012 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2106 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 2332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2332 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:54:30,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2106 Valid, 28 Invalid, 3978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2332 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:54:30,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-01-31 19:54:30,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 534. [2022-01-31 19:54:30,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 442 states have (on average 1.006787330316742) internal successors, (445), 442 states have internal predecessors, (445), 88 states have call successors, (88), 4 states have call predecessors, (88), 3 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-01-31 19:54:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 620 transitions. [2022-01-31 19:54:30,433 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 620 transitions. Word has length 855 [2022-01-31 19:54:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:54:30,433 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 620 transitions. [2022-01-31 19:54:30,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 3.0112359550561796) internal successors, (268), 88 states have internal predecessors, (268), 87 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-01-31 19:54:30,433 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 620 transitions. [2022-01-31 19:54:30,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2022-01-31 19:54:30,438 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:54:30,438 INFO L514 BasicCegarLoop]: trace histogram [85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:54:30,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-01-31 19:54:30,438 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:54:30,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:54:30,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1467430247, now seen corresponding path program 85 times [2022-01-31 19:54:30,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:54:30,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554832675] [2022-01-31 19:54:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:54:30,441 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:54:30,441 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:54:30,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:54:30,458 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:54:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:54:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:54:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:54:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:54:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:54:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:54:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:54:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:54:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:54:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:54:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:54:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:54:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:54:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:54:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:54:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:54:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:54:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:54:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:54:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:54:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:54:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:54:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:54:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:54:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:54:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:54:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:54:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:54:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:54:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:54:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:54:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:54:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:54:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:54:33,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:54:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:54:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:54:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:54:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:54:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:54:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:54:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:54:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:54:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:54:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:54:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:54:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:54:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:54:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:54:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:54:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:54:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:54:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:54:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:54:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:54:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:54:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:54:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:54:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:54:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:54:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:54:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:54:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:54:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:54:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:54:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:54:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:54:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:54:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:54:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:54:33,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:54:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:54:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:54:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:54:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:54:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:54:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:54:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:54:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:54:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:54:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:54:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:54:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:54:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:54:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:54:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:54:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2022-01-31 19:54:33,233 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:54:33,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554832675] [2022-01-31 19:54:33,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1554832675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:54:33,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:54:33,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-01-31 19:54:33,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035941314] [2022-01-31 19:54:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:54:33,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-01-31 19:54:33,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:54:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-01-31 19:54:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3833, Invalid=4177, Unknown=0, NotChecked=0, Total=8010 [2022-01-31 19:54:33,235 INFO L87 Difference]: Start difference. First operand 534 states and 620 transitions. Second operand has 90 states, 90 states have (on average 3.011111111111111) internal successors, (271), 89 states have internal predecessors, (271), 88 states have call successors, (88), 4 states have call predecessors, (88), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-01-31 19:54:48,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:54:48,273 INFO L93 Difference]: Finished difference Result 1067 states and 1243 transitions. [2022-01-31 19:54:48,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-01-31 19:54:48,273 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 3.011111111111111) internal successors, (271), 89 states have internal predecessors, (271), 88 states have call successors, (88), 4 states have call predecessors, (88), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Word has length 865 [2022-01-31 19:54:48,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:54:48,275 INFO L225 Difference]: With dead ends: 1067 [2022-01-31 19:54:48,275 INFO L226 Difference]: Without dead ends: 884 [2022-01-31 19:54:48,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3826 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=11663, Invalid=19489, Unknown=0, NotChecked=0, Total=31152 [2022-01-31 19:54:48,277 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1981 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 2210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2210 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:54:48,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1981 Valid, 32 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2210 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:54:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-01-31 19:54:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 540. [2022-01-31 19:54:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 447 states have (on average 1.0067114093959733) internal successors, (450), 447 states have internal predecessors, (450), 89 states have call successors, (89), 4 states have call predecessors, (89), 3 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2022-01-31 19:54:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 627 transitions. [2022-01-31 19:54:48,734 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 627 transitions. Word has length 865 [2022-01-31 19:54:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:54:48,735 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 627 transitions. [2022-01-31 19:54:48,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 3.011111111111111) internal successors, (271), 89 states have internal predecessors, (271), 88 states have call successors, (88), 4 states have call predecessors, (88), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-01-31 19:54:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 627 transitions. [2022-01-31 19:54:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 876 [2022-01-31 19:54:48,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:54:48,740 INFO L514 BasicCegarLoop]: trace histogram [86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:54:48,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-01-31 19:54:48,740 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:54:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:54:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1110984170, now seen corresponding path program 86 times [2022-01-31 19:54:48,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:54:48,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704776758] [2022-01-31 19:54:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:54:48,743 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:54:48,743 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:54:48,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:54:48,760 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:54:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:54:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:54:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:54:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:54:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:54:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:54:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:54:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:54:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:54:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:54:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:54:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:54:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:54:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:54:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:54:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:54:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:54:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:54:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:54:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:54:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:54:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:54:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:54:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:54:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:54:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:54:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:54:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:54:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:54:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:54:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:54:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:54:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:54:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:54:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:54:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:54:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:54:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:54:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:54:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:54:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:54:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:54:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:54:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:54:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:54:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:54:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:54:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:54:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:54:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:54:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:54:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:54:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:54:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:54:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:54:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:54:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:54:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:54:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:54:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:54:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:54:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:54:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:54:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:54:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:54:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:54:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:54:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:54:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:54:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:54:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:54:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:54:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:54:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:54:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:54:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:54:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:54:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:54:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:54:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:54:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:54:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:54:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:54:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:54:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:54:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:54:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:54:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:54:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 14620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2022-01-31 19:54:51,603 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:54:51,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704776758] [2022-01-31 19:54:51,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1704776758] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:54:51,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:54:51,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [91] imperfect sequences [] total 91 [2022-01-31 19:54:51,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551744367] [2022-01-31 19:54:51,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:54:51,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2022-01-31 19:54:51,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:54:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2022-01-31 19:54:51,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3921, Invalid=4269, Unknown=0, NotChecked=0, Total=8190 [2022-01-31 19:54:51,606 INFO L87 Difference]: Start difference. First operand 540 states and 627 transitions. Second operand has 91 states, 91 states have (on average 3.010989010989011) internal successors, (274), 90 states have internal predecessors, (274), 89 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-01-31 19:55:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:55:06,967 INFO L93 Difference]: Finished difference Result 1079 states and 1257 transitions. [2022-01-31 19:55:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-01-31 19:55:06,968 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 91 states have (on average 3.010989010989011) internal successors, (274), 90 states have internal predecessors, (274), 89 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Word has length 875 [2022-01-31 19:55:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:55:06,970 INFO L225 Difference]: With dead ends: 1079 [2022-01-31 19:55:06,970 INFO L226 Difference]: Without dead ends: 894 [2022-01-31 19:55:06,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3914 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=11929, Invalid=19933, Unknown=0, NotChecked=0, Total=31862 [2022-01-31 19:55:06,972 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2073 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 2306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 3839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2306 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:55:06,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2073 Valid, 28 Invalid, 3839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2306 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:55:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-01-31 19:55:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 546. [2022-01-31 19:55:07,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 452 states have (on average 1.0066371681415929) internal successors, (455), 452 states have internal predecessors, (455), 90 states have call successors, (90), 4 states have call predecessors, (90), 3 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2022-01-31 19:55:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 634 transitions. [2022-01-31 19:55:07,418 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 634 transitions. Word has length 875 [2022-01-31 19:55:07,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:55:07,418 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 634 transitions. [2022-01-31 19:55:07,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 91 states have (on average 3.010989010989011) internal successors, (274), 90 states have internal predecessors, (274), 89 states have call successors, (89), 4 states have call predecessors, (89), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2022-01-31 19:55:07,419 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 634 transitions. [2022-01-31 19:55:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2022-01-31 19:55:07,423 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:55:07,423 INFO L514 BasicCegarLoop]: trace histogram [87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:55:07,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-01-31 19:55:07,423 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:55:07,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:55:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1929196653, now seen corresponding path program 87 times [2022-01-31 19:55:07,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:55:07,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037592834] [2022-01-31 19:55:07,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:55:07,426 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:55:07,426 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:55:07,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:55:07,440 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:55:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:55:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:55:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:55:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:55:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:55:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:55:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:55:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:55:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:55:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:55:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:55:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:55:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:55:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:55:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:55:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:55:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:55:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:55:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:55:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:55:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:55:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:55:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:55:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:55:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:55:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:55:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:55:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:55:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:55:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:55:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:55:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:55:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:55:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:55:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:55:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:55:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:55:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:55:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:55:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:55:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:55:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:55:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:55:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:55:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:55:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:55:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:55:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:55:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:55:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:55:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:55:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:55:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:55:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:55:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:55:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:55:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:55:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:55:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:55:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:55:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:55:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:55:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:55:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:55:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:55:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:55:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:55:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:55:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:55:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:55:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:55:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:55:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:55:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:55:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:55:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:55:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:55:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:55:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:55:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:55:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:55:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:55:10,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:55:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:55:10,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:55:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:55:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:55:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:55:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:10,317 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2022-01-31 19:55:10,317 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:55:10,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037592834] [2022-01-31 19:55:10,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2037592834] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:55:10,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:55:10,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-01-31 19:55:10,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562281914] [2022-01-31 19:55:10,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:55:10,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-01-31 19:55:10,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:55:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-01-31 19:55:10,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4010, Invalid=4362, Unknown=0, NotChecked=0, Total=8372 [2022-01-31 19:55:10,321 INFO L87 Difference]: Start difference. First operand 546 states and 634 transitions. Second operand has 92 states, 92 states have (on average 3.010869565217391) internal successors, (277), 91 states have internal predecessors, (277), 90 states have call successors, (90), 4 states have call predecessors, (90), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2022-01-31 19:55:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:55:26,148 INFO L93 Difference]: Finished difference Result 1091 states and 1271 transitions. [2022-01-31 19:55:26,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-01-31 19:55:26,148 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 3.010869565217391) internal successors, (277), 91 states have internal predecessors, (277), 90 states have call successors, (90), 4 states have call predecessors, (90), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Word has length 885 [2022-01-31 19:55:26,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:55:26,150 INFO L225 Difference]: With dead ends: 1091 [2022-01-31 19:55:26,150 INFO L226 Difference]: Without dead ends: 904 [2022-01-31 19:55:26,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4003 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=12198, Invalid=20382, Unknown=0, NotChecked=0, Total=32580 [2022-01-31 19:55:26,152 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1886 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 2121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 4137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2121 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:55:26,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1886 Valid, 42 Invalid, 4137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2121 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:55:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2022-01-31 19:55:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 552. [2022-01-31 19:55:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 457 states have (on average 1.0065645514223194) internal successors, (460), 457 states have internal predecessors, (460), 91 states have call successors, (91), 4 states have call predecessors, (91), 3 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-01-31 19:55:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 641 transitions. [2022-01-31 19:55:26,576 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 641 transitions. Word has length 885 [2022-01-31 19:55:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:55:26,576 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 641 transitions. [2022-01-31 19:55:26,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 3.010869565217391) internal successors, (277), 91 states have internal predecessors, (277), 90 states have call successors, (90), 4 states have call predecessors, (90), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2022-01-31 19:55:26,576 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 641 transitions. [2022-01-31 19:55:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2022-01-31 19:55:26,581 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:55:26,581 INFO L514 BasicCegarLoop]: trace histogram [88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:55:26,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-01-31 19:55:26,581 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:55:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:55:26,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1384517872, now seen corresponding path program 88 times [2022-01-31 19:55:26,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:55:26,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [281384413] [2022-01-31 19:55:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:55:26,584 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:55:26,584 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:55:26,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:55:26,598 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:55:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:55:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:55:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:55:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:55:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:55:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:55:29,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:55:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:55:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:55:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:55:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:55:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:55:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:55:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:55:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:55:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:55:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:55:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:55:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:55:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:55:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:55:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:55:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:55:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:55:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:55:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:55:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:55:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:55:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:55:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:55:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:55:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:55:29,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:55:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:55:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:55:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:55:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:55:29,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:55:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:55:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:55:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:55:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:55:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:55:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:55:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:55:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:55:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:55:29,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:55:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:55:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:55:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:55:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:55:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:55:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:55:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:55:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:55:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:55:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:55:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:55:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:55:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:55:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:55:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:55:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:55:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:55:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:55:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:55:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:55:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:55:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:55:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:55:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:55:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:55:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:55:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:55:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:55:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:55:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:55:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:55:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:55:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:55:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:55:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:55:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:55:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:55:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:55:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:55:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:55:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:55:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 15312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2022-01-31 19:55:29,570 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:55:29,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [281384413] [2022-01-31 19:55:29,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [281384413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:55:29,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:55:29,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [] total 93 [2022-01-31 19:55:29,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191283926] [2022-01-31 19:55:29,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:55:29,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-01-31 19:55:29,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:55:29,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-01-31 19:55:29,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4100, Invalid=4456, Unknown=0, NotChecked=0, Total=8556 [2022-01-31 19:55:29,573 INFO L87 Difference]: Start difference. First operand 552 states and 641 transitions. Second operand has 93 states, 93 states have (on average 3.010752688172043) internal successors, (280), 92 states have internal predecessors, (280), 91 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2022-01-31 19:55:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:55:45,347 INFO L93 Difference]: Finished difference Result 1103 states and 1285 transitions. [2022-01-31 19:55:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-01-31 19:55:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 3.010752688172043) internal successors, (280), 92 states have internal predecessors, (280), 91 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Word has length 895 [2022-01-31 19:55:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:55:45,349 INFO L225 Difference]: With dead ends: 1103 [2022-01-31 19:55:45,349 INFO L226 Difference]: Without dead ends: 914 [2022-01-31 19:55:45,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4093 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=12470, Invalid=20836, Unknown=0, NotChecked=0, Total=33306 [2022-01-31 19:55:45,351 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 1965 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 2201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 4253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2201 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:55:45,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1965 Valid, 34 Invalid, 4253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2201 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:55:45,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-01-31 19:55:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 558. [2022-01-31 19:55:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 462 states have (on average 1.0064935064935066) internal successors, (465), 462 states have internal predecessors, (465), 92 states have call successors, (92), 4 states have call predecessors, (92), 3 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2022-01-31 19:55:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 648 transitions. [2022-01-31 19:55:45,774 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 648 transitions. Word has length 895 [2022-01-31 19:55:45,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:55:45,775 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 648 transitions. [2022-01-31 19:55:45,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 3.010752688172043) internal successors, (280), 92 states have internal predecessors, (280), 91 states have call successors, (91), 4 states have call predecessors, (91), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2022-01-31 19:55:45,775 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 648 transitions. [2022-01-31 19:55:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 906 [2022-01-31 19:55:45,779 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:55:45,780 INFO L514 BasicCegarLoop]: trace histogram [89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:55:45,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-01-31 19:55:45,780 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:55:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:55:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1000008563, now seen corresponding path program 89 times [2022-01-31 19:55:45,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:55:45,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [44051564] [2022-01-31 19:55:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:55:45,782 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:55:45,782 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:55:45,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:55:45,797 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:55:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:55:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:55:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:55:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:55:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:55:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:55:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:55:48,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:55:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:55:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:55:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:55:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:55:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:55:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:55:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:55:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:55:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:55:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:55:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:55:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:55:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:55:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:55:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:55:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:55:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:55:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:55:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:55:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:55:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:55:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:55:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:55:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:55:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:55:48,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:55:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:55:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:55:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:55:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:55:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:55:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:55:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:55:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:55:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:55:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:55:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:55:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:55:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:55:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:55:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:55:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:55:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:55:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:55:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:55:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:55:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:55:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:55:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:55:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:55:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:55:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:55:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:55:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:55:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:55:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:55:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:55:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:55:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:55:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:55:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:55:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:55:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:55:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:55:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:55:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:55:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:55:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:55:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:55:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:55:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:55:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:55:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:55:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:55:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:55:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:55:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:55:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:55:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:55:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:55:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:55:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:55:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:55:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2022-01-31 19:55:48,715 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:55:48,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [44051564] [2022-01-31 19:55:48,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [44051564] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:55:48,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:55:48,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-01-31 19:55:48,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441591680] [2022-01-31 19:55:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:55:48,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-01-31 19:55:48,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:55:48,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-01-31 19:55:48,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4191, Invalid=4551, Unknown=0, NotChecked=0, Total=8742 [2022-01-31 19:55:48,718 INFO L87 Difference]: Start difference. First operand 558 states and 648 transitions. Second operand has 94 states, 94 states have (on average 3.0106382978723403) internal successors, (283), 93 states have internal predecessors, (283), 92 states have call successors, (92), 4 states have call predecessors, (92), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-01-31 19:56:04,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:56:04,754 INFO L93 Difference]: Finished difference Result 1115 states and 1299 transitions. [2022-01-31 19:56:04,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-01-31 19:56:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 3.0106382978723403) internal successors, (283), 93 states have internal predecessors, (283), 92 states have call successors, (92), 4 states have call predecessors, (92), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) Word has length 905 [2022-01-31 19:56:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:56:04,756 INFO L225 Difference]: With dead ends: 1115 [2022-01-31 19:56:04,756 INFO L226 Difference]: Without dead ends: 924 [2022-01-31 19:56:04,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4184 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=12745, Invalid=21295, Unknown=0, NotChecked=0, Total=34040 [2022-01-31 19:56:04,758 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2405 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 2644 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 4469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2644 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:56:04,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 26 Invalid, 4469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2644 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:56:04,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2022-01-31 19:56:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 564. [2022-01-31 19:56:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 467 states have (on average 1.006423982869379) internal successors, (470), 467 states have internal predecessors, (470), 93 states have call successors, (93), 4 states have call predecessors, (93), 3 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2022-01-31 19:56:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 655 transitions. [2022-01-31 19:56:05,193 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 655 transitions. Word has length 905 [2022-01-31 19:56:05,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:56:05,193 INFO L470 AbstractCegarLoop]: Abstraction has 564 states and 655 transitions. [2022-01-31 19:56:05,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 3.0106382978723403) internal successors, (283), 93 states have internal predecessors, (283), 92 states have call successors, (92), 4 states have call predecessors, (92), 2 states have return successors, (90), 90 states have call predecessors, (90), 90 states have call successors, (90) [2022-01-31 19:56:05,193 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 655 transitions. [2022-01-31 19:56:05,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2022-01-31 19:56:05,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:56:05,198 INFO L514 BasicCegarLoop]: trace histogram [90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:56:05,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-01-31 19:56:05,198 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:56:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:56:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1242289142, now seen corresponding path program 90 times [2022-01-31 19:56:05,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:56:05,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105465916] [2022-01-31 19:56:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:56:05,201 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:56:05,201 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:56:05,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:56:05,215 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:56:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:56:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:56:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:56:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:56:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:56:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:56:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:56:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:56:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:56:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:56:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:56:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:56:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:56:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:56:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:56:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:56:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:56:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:56:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:56:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:56:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:56:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:56:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:56:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:56:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:56:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:56:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:56:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:56:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:56:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:56:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:56:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:56:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:56:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:56:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:56:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:56:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:56:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:56:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:56:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:56:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:56:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:56:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:56:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:56:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:56:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:56:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:56:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:56:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:56:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:56:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:56:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:56:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:56:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:56:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:56:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:56:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:56:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:56:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:56:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:56:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:56:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:56:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:56:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:56:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:56:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:56:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:56:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:56:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:56:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:56:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:56:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:56:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:56:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:56:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:56:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:56:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:56:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:56:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:56:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:56:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:56:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:56:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:56:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:56:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:56:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:56:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:56:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:56:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:56:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:56:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:56:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2022-01-31 19:56:08,276 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:56:08,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105465916] [2022-01-31 19:56:08,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1105465916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:56:08,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:56:08,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [95] imperfect sequences [] total 95 [2022-01-31 19:56:08,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321290522] [2022-01-31 19:56:08,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:56:08,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-01-31 19:56:08,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:56:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-01-31 19:56:08,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4283, Invalid=4647, Unknown=0, NotChecked=0, Total=8930 [2022-01-31 19:56:08,279 INFO L87 Difference]: Start difference. First operand 564 states and 655 transitions. Second operand has 95 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 94 states have internal predecessors, (286), 93 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2022-01-31 19:56:24,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:56:24,577 INFO L93 Difference]: Finished difference Result 1127 states and 1313 transitions. [2022-01-31 19:56:24,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-01-31 19:56:24,577 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 94 states have internal predecessors, (286), 93 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) Word has length 915 [2022-01-31 19:56:24,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:56:24,579 INFO L225 Difference]: With dead ends: 1127 [2022-01-31 19:56:24,580 INFO L226 Difference]: Without dead ends: 934 [2022-01-31 19:56:24,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4276 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=13023, Invalid=21759, Unknown=0, NotChecked=0, Total=34782 [2022-01-31 19:56:24,582 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2163 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 2407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2407 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:56:24,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2163 Valid, 34 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2407 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:56:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-01-31 19:56:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 570. [2022-01-31 19:56:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 472 states have (on average 1.00635593220339) internal successors, (475), 472 states have internal predecessors, (475), 94 states have call successors, (94), 4 states have call predecessors, (94), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-01-31 19:56:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 662 transitions. [2022-01-31 19:56:25,029 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 662 transitions. Word has length 915 [2022-01-31 19:56:25,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:56:25,029 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 662 transitions. [2022-01-31 19:56:25,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 3.0105263157894737) internal successors, (286), 94 states have internal predecessors, (286), 93 states have call successors, (93), 4 states have call predecessors, (93), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2022-01-31 19:56:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 662 transitions. [2022-01-31 19:56:25,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2022-01-31 19:56:25,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:56:25,034 INFO L514 BasicCegarLoop]: trace histogram [91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:56:25,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-01-31 19:56:25,035 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:56:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:56:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash -699456121, now seen corresponding path program 91 times [2022-01-31 19:56:25,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:56:25,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769735026] [2022-01-31 19:56:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:56:25,037 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:56:25,037 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:56:25,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:56:25,052 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:56:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:27,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:56:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:56:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:27,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:56:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:56:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:56:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:56:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:56:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:56:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:56:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:56:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:56:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:56:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:56:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:56:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:56:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:56:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:56:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:56:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:56:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:56:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:56:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:56:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:56:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:56:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:56:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:56:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:56:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:56:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:56:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:56:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:56:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:56:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:56:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:56:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:56:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:56:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:56:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:56:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:56:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:56:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:56:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:56:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:56:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:56:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:56:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:56:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:56:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:56:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:56:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:56:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:56:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:56:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:56:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:56:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:56:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:56:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:56:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:56:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:56:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:56:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:56:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:56:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:56:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:56:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:56:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:56:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:56:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:56:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:56:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:56:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:56:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:56:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:56:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:56:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:56:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:56:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:56:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:56:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:56:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:56:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:56:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:56:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:56:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:56:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:56:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:56:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:56:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:56:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:56:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:56:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:56:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2022-01-31 19:56:28,119 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:56:28,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769735026] [2022-01-31 19:56:28,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [769735026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:56:28,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:56:28,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-01-31 19:56:28,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755446976] [2022-01-31 19:56:28,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:56:28,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-01-31 19:56:28,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:56:28,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-01-31 19:56:28,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4376, Invalid=4744, Unknown=0, NotChecked=0, Total=9120 [2022-01-31 19:56:28,122 INFO L87 Difference]: Start difference. First operand 570 states and 662 transitions. Second operand has 96 states, 96 states have (on average 3.0104166666666665) internal successors, (289), 95 states have internal predecessors, (289), 94 states have call successors, (94), 4 states have call predecessors, (94), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2022-01-31 19:56:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:56:45,009 INFO L93 Difference]: Finished difference Result 1139 states and 1327 transitions. [2022-01-31 19:56:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-01-31 19:56:45,009 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 3.0104166666666665) internal successors, (289), 95 states have internal predecessors, (289), 94 states have call successors, (94), 4 states have call predecessors, (94), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 925 [2022-01-31 19:56:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:56:45,011 INFO L225 Difference]: With dead ends: 1139 [2022-01-31 19:56:45,011 INFO L226 Difference]: Without dead ends: 944 [2022-01-31 19:56:45,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4369 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=13304, Invalid=22228, Unknown=0, NotChecked=0, Total=35532 [2022-01-31 19:56:45,013 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2283 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 2531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 4302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2531 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-31 19:56:45,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 36 Invalid, 4302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2531 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-31 19:56:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2022-01-31 19:56:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 576. [2022-01-31 19:56:45,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 477 states have (on average 1.0062893081761006) internal successors, (480), 477 states have internal predecessors, (480), 95 states have call successors, (95), 4 states have call predecessors, (95), 3 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-01-31 19:56:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 669 transitions. [2022-01-31 19:56:45,478 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 669 transitions. Word has length 925 [2022-01-31 19:56:45,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:56:45,478 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 669 transitions. [2022-01-31 19:56:45,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.0104166666666665) internal successors, (289), 95 states have internal predecessors, (289), 94 states have call successors, (94), 4 states have call predecessors, (94), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2022-01-31 19:56:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 669 transitions. [2022-01-31 19:56:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2022-01-31 19:56:45,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:56:45,483 INFO L514 BasicCegarLoop]: trace histogram [92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:56:45,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-01-31 19:56:45,483 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:56:45,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:56:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash 446034180, now seen corresponding path program 92 times [2022-01-31 19:56:45,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:56:45,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945550205] [2022-01-31 19:56:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:56:45,485 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:56:45,486 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:56:45,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:56:45,501 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:56:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:56:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:56:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:56:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:56:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:56:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:56:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:56:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:56:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:56:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:56:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:56:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:56:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:56:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:56:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:56:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:56:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:56:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:56:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:56:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:56:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:56:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:56:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:56:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:56:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:56:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:56:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:56:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:56:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:56:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:56:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:56:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:56:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:56:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:56:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:56:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:56:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:56:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:56:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:56:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:56:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:56:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:56:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:56:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:56:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:56:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:56:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:56:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:56:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:56:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:56:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:56:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:56:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:56:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:56:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:56:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:56:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:56:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:56:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:56:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:56:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:56:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:56:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:56:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:56:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:56:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:56:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:56:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:56:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:56:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:56:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:56:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:56:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:56:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:56:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:56:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:56:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:56:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:56:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:56:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:56:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:56:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:56:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:56:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:56:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:56:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:56:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:56:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:56:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:56:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:56:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:56:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:56:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:56:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:56:48,575 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2022-01-31 19:56:48,575 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:56:48,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945550205] [2022-01-31 19:56:48,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1945550205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:56:48,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:56:48,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [] total 97 [2022-01-31 19:56:48,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426452089] [2022-01-31 19:56:48,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:56:48,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-01-31 19:56:48,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:56:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-01-31 19:56:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4470, Invalid=4842, Unknown=0, NotChecked=0, Total=9312 [2022-01-31 19:56:48,579 INFO L87 Difference]: Start difference. First operand 576 states and 669 transitions. Second operand has 97 states, 97 states have (on average 3.0103092783505154) internal successors, (292), 96 states have internal predecessors, (292), 95 states have call successors, (95), 4 states have call predecessors, (95), 2 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-01-31 19:57:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:57:06,538 INFO L93 Difference]: Finished difference Result 1151 states and 1341 transitions. [2022-01-31 19:57:06,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-01-31 19:57:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.0103092783505154) internal successors, (292), 96 states have internal predecessors, (292), 95 states have call successors, (95), 4 states have call predecessors, (95), 2 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) Word has length 935 [2022-01-31 19:57:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:57:06,540 INFO L225 Difference]: With dead ends: 1151 [2022-01-31 19:57:06,540 INFO L226 Difference]: Without dead ends: 954 [2022-01-31 19:57:06,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4463 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=13588, Invalid=22702, Unknown=0, NotChecked=0, Total=36290 [2022-01-31 19:57:06,542 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2247 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 2496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 4310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2496 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:57:06,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2247 Valid, 30 Invalid, 4310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2496 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:57:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-01-31 19:57:07,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 582. [2022-01-31 19:57:07,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 482 states have (on average 1.0062240663900415) internal successors, (485), 482 states have internal predecessors, (485), 96 states have call successors, (96), 4 states have call predecessors, (96), 3 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-01-31 19:57:07,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 676 transitions. [2022-01-31 19:57:07,014 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 676 transitions. Word has length 935 [2022-01-31 19:57:07,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:57:07,015 INFO L470 AbstractCegarLoop]: Abstraction has 582 states and 676 transitions. [2022-01-31 19:57:07,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.0103092783505154) internal successors, (292), 96 states have internal predecessors, (292), 95 states have call successors, (95), 4 states have call predecessors, (95), 2 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-01-31 19:57:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 676 transitions. [2022-01-31 19:57:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2022-01-31 19:57:07,020 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:57:07,020 INFO L514 BasicCegarLoop]: trace histogram [93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:57:07,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-01-31 19:57:07,020 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:57:07,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:57:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1239449217, now seen corresponding path program 93 times [2022-01-31 19:57:07,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:57:07,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1423610978] [2022-01-31 19:57:07,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:57:07,022 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:57:07,022 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:57:07,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:57:07,038 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:57:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:57:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:57:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:57:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:57:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:57:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:57:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:57:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:57:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:57:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:57:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:57:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:57:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:57:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:57:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:57:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:57:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:57:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:57:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:57:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:57:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:57:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:57:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:57:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:57:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:57:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:57:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:57:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:57:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:57:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:57:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:57:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:57:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:57:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:57:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:57:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:57:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:57:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:57:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:57:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:57:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:57:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:57:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:57:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:57:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:57:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:57:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:57:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:57:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:57:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:57:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:57:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:57:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:57:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:57:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:57:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:57:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:57:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:57:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:57:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:57:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:57:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:57:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:57:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:57:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:57:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:57:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:57:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:57:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:57:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:57:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:57:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:57:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:57:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:57:10,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:57:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:57:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:57:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:57:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:57:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:57:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:57:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:57:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:57:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:57:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:57:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:57:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:57:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:57:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:57:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:57:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:57:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:57:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:57:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:57:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 17112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2022-01-31 19:57:10,227 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:57:10,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1423610978] [2022-01-31 19:57:10,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1423610978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:57:10,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:57:10,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-01-31 19:57:10,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271456331] [2022-01-31 19:57:10,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:57:10,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-01-31 19:57:10,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:57:10,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-01-31 19:57:10,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4565, Invalid=4941, Unknown=0, NotChecked=0, Total=9506 [2022-01-31 19:57:10,231 INFO L87 Difference]: Start difference. First operand 582 states and 676 transitions. Second operand has 98 states, 98 states have (on average 3.010204081632653) internal successors, (295), 97 states have internal predecessors, (295), 96 states have call successors, (96), 4 states have call predecessors, (96), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-01-31 19:57:28,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:57:28,957 INFO L93 Difference]: Finished difference Result 1163 states and 1355 transitions. [2022-01-31 19:57:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-01-31 19:57:28,958 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 3.010204081632653) internal successors, (295), 97 states have internal predecessors, (295), 96 states have call successors, (96), 4 states have call predecessors, (96), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 945 [2022-01-31 19:57:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:57:28,960 INFO L225 Difference]: With dead ends: 1163 [2022-01-31 19:57:28,960 INFO L226 Difference]: Without dead ends: 964 [2022-01-31 19:57:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4558 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=13875, Invalid=23181, Unknown=0, NotChecked=0, Total=37056 [2022-01-31 19:57:28,962 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2284 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 2536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 4397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2536 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:57:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 28 Invalid, 4397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2536 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:57:28,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-01-31 19:57:29,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 588. [2022-01-31 19:57:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 487 states have (on average 1.0061601642710472) internal successors, (490), 487 states have internal predecessors, (490), 97 states have call successors, (97), 4 states have call predecessors, (97), 3 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-01-31 19:57:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 683 transitions. [2022-01-31 19:57:29,437 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 683 transitions. Word has length 945 [2022-01-31 19:57:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:57:29,438 INFO L470 AbstractCegarLoop]: Abstraction has 588 states and 683 transitions. [2022-01-31 19:57:29,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.010204081632653) internal successors, (295), 97 states have internal predecessors, (295), 96 states have call successors, (96), 4 states have call predecessors, (96), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2022-01-31 19:57:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 683 transitions. [2022-01-31 19:57:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2022-01-31 19:57:29,443 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:57:29,443 INFO L514 BasicCegarLoop]: trace histogram [94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:57:29,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-01-31 19:57:29,443 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:57:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:57:29,443 INFO L85 PathProgramCache]: Analyzing trace with hash 775863806, now seen corresponding path program 94 times [2022-01-31 19:57:29,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:57:29,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068612762] [2022-01-31 19:57:29,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:57:29,445 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:57:29,445 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:57:29,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:57:29,461 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:57:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:57:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:57:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:57:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:57:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:57:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:57:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:57:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:57:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:57:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:57:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:57:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:57:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:57:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:57:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:57:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:57:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:57:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:57:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:57:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:57:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:57:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:57:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:57:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:57:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:57:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:57:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:57:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:57:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:57:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:57:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:57:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:57:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:57:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:57:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:57:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:57:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:57:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:57:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:57:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:57:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:57:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:57:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:57:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:57:32,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:57:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:57:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:57:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:57:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:57:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:57:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:57:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:57:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:57:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:57:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:57:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:57:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:57:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:57:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:57:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:57:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:57:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:57:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:57:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:57:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:57:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:57:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:57:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:57:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:57:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:57:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:57:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:57:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:57:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:57:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:57:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:57:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:57:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:57:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:57:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:57:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:57:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:57:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:57:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:57:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:57:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:57:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:57:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:57:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:57:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:57:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:57:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:57:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:57:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:57:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-01-31 19:57:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2022-01-31 19:57:32,690 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:57:32,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068612762] [2022-01-31 19:57:32,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2068612762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:57:32,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:57:32,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [] total 99 [2022-01-31 19:57:32,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397496319] [2022-01-31 19:57:32,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:57:32,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-01-31 19:57:32,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:57:32,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-01-31 19:57:32,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4661, Invalid=5041, Unknown=0, NotChecked=0, Total=9702 [2022-01-31 19:57:32,693 INFO L87 Difference]: Start difference. First operand 588 states and 683 transitions. Second operand has 99 states, 99 states have (on average 3.01010101010101) internal successors, (298), 98 states have internal predecessors, (298), 97 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-01-31 19:57:51,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:57:51,652 INFO L93 Difference]: Finished difference Result 1175 states and 1369 transitions. [2022-01-31 19:57:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-01-31 19:57:51,652 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 3.01010101010101) internal successors, (298), 98 states have internal predecessors, (298), 97 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Word has length 955 [2022-01-31 19:57:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:57:51,654 INFO L225 Difference]: With dead ends: 1175 [2022-01-31 19:57:51,654 INFO L226 Difference]: Without dead ends: 974 [2022-01-31 19:57:51,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4654 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=14165, Invalid=23665, Unknown=0, NotChecked=0, Total=37830 [2022-01-31 19:57:51,657 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2273 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 2531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 4336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2531 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:57:51,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2273 Valid, 38 Invalid, 4336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2531 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:57:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-01-31 19:57:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 594. [2022-01-31 19:57:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 492 states have (on average 1.0060975609756098) internal successors, (495), 492 states have internal predecessors, (495), 98 states have call successors, (98), 4 states have call predecessors, (98), 3 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2022-01-31 19:57:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 690 transitions. [2022-01-31 19:57:52,160 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 690 transitions. Word has length 955 [2022-01-31 19:57:52,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:57:52,160 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 690 transitions. [2022-01-31 19:57:52,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 3.01010101010101) internal successors, (298), 98 states have internal predecessors, (298), 97 states have call successors, (97), 4 states have call predecessors, (97), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-01-31 19:57:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 690 transitions. [2022-01-31 19:57:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2022-01-31 19:57:52,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:57:52,166 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:57:52,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-01-31 19:57:52,166 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:57:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:57:52,166 INFO L85 PathProgramCache]: Analyzing trace with hash -977756293, now seen corresponding path program 95 times [2022-01-31 19:57:52,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:57:52,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054961789] [2022-01-31 19:57:52,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:57:52,168 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:57:52,168 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:57:52,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:57:52,186 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:57:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:57:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:57:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:57:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:57:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:57:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:57:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:57:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:57:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:57:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:57:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:57:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:57:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:57:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:57:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:57:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:57:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:57:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:57:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:57:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:57:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:57:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:57:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:57:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:57:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:57:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:57:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:57:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:57:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:57:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:57:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:57:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:57:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:57:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:57:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:57:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:57:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:57:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:57:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:57:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:57:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:57:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:57:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:57:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:57:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:57:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:57:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:57:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:57:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:57:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:57:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:57:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:57:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:57:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:57:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:57:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:57:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:57:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:57:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:57:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:57:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:57:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:57:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:57:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:57:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:57:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:57:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:57:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:57:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:57:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:57:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:57:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:57:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:57:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:57:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:57:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:57:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:57:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:57:55,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:57:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:57:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:57:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:57:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:57:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:57:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:57:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:57:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:57:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:57:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:57:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:57:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:57:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:57:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:57:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:57:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-01-31 19:57:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 759 [2022-01-31 19:57:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:57:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 17860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2022-01-31 19:57:55,453 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:57:55,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054961789] [2022-01-31 19:57:55,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [2054961789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:57:55,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:57:55,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-01-31 19:57:55,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976658631] [2022-01-31 19:57:55,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:57:55,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-01-31 19:57:55,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:57:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-01-31 19:57:55,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4758, Invalid=5142, Unknown=0, NotChecked=0, Total=9900 [2022-01-31 19:57:55,457 INFO L87 Difference]: Start difference. First operand 594 states and 690 transitions. Second operand has 100 states, 100 states have (on average 3.01) internal successors, (301), 99 states have internal predecessors, (301), 98 states have call successors, (98), 4 states have call predecessors, (98), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-01-31 19:58:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:58:14,765 INFO L93 Difference]: Finished difference Result 1187 states and 1383 transitions. [2022-01-31 19:58:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-01-31 19:58:14,765 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 3.01) internal successors, (301), 99 states have internal predecessors, (301), 98 states have call successors, (98), 4 states have call predecessors, (98), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Word has length 965 [2022-01-31 19:58:14,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:58:14,767 INFO L225 Difference]: With dead ends: 1187 [2022-01-31 19:58:14,767 INFO L226 Difference]: Without dead ends: 984 [2022-01-31 19:58:14,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=14458, Invalid=24154, Unknown=0, NotChecked=0, Total=38612 [2022-01-31 19:58:14,770 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2501 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 2761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2501 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 4628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2761 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-31 19:58:14,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2501 Valid, 34 Invalid, 4628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2761 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-31 19:58:14,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2022-01-31 19:58:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 600. [2022-01-31 19:58:15,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 497 states have (on average 1.0060362173038229) internal successors, (500), 497 states have internal predecessors, (500), 99 states have call successors, (99), 4 states have call predecessors, (99), 3 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-01-31 19:58:15,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 697 transitions. [2022-01-31 19:58:15,282 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 697 transitions. Word has length 965 [2022-01-31 19:58:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:58:15,282 INFO L470 AbstractCegarLoop]: Abstraction has 600 states and 697 transitions. [2022-01-31 19:58:15,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 3.01) internal successors, (301), 99 states have internal predecessors, (301), 98 states have call successors, (98), 4 states have call predecessors, (98), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-01-31 19:58:15,282 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 697 transitions. [2022-01-31 19:58:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2022-01-31 19:58:15,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:58:15,288 INFO L514 BasicCegarLoop]: trace histogram [96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:58:15,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-01-31 19:58:15,288 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:58:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:58:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1934496504, now seen corresponding path program 96 times [2022-01-31 19:58:15,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:58:15,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084910139] [2022-01-31 19:58:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:58:15,290 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:58:15,290 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:58:15,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:58:15,308 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:58:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:58:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:58:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:58:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:58:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:58:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:58:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:58:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:58:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:58:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:58:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:58:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:58:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:58:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:58:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:58:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:58:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:58:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:58:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:58:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:58:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:58:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:58:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:58:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:58:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:58:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:58:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:58:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:58:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:58:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:58:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:58:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:58:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:58:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:58:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:58:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:58:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:58:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:58:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:58:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:58:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:58:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:58:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:58:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:58:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:58:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:58:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:58:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:58:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:58:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:58:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:58:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:58:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:58:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:58:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:58:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:58:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:58:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:58:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:58:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:58:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:58:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:58:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:58:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:58:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:58:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:58:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:58:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:58:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:58:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:58:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:58:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:58:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:58:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:58:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:58:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:58:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:58:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:58:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:58:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:58:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:58:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:58:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:58:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:58:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:58:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:58:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:58:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:58:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:58:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:58:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:58:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:58:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:58:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:58:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-01-31 19:58:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 759 [2022-01-31 19:58:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2022-01-31 19:58:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 18240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2022-01-31 19:58:18,652 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:58:18,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084910139] [2022-01-31 19:58:18,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1084910139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:58:18,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:58:18,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [101] imperfect sequences [] total 101 [2022-01-31 19:58:18,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647367109] [2022-01-31 19:58:18,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:58:18,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-01-31 19:58:18,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:58:18,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-01-31 19:58:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4856, Invalid=5244, Unknown=0, NotChecked=0, Total=10100 [2022-01-31 19:58:18,655 INFO L87 Difference]: Start difference. First operand 600 states and 697 transitions. Second operand has 101 states, 101 states have (on average 3.00990099009901) internal successors, (304), 100 states have internal predecessors, (304), 99 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2022-01-31 19:58:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:58:38,762 INFO L93 Difference]: Finished difference Result 1199 states and 1397 transitions. [2022-01-31 19:58:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-01-31 19:58:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 3.00990099009901) internal successors, (304), 100 states have internal predecessors, (304), 99 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Word has length 975 [2022-01-31 19:58:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:58:38,764 INFO L225 Difference]: With dead ends: 1199 [2022-01-31 19:58:38,765 INFO L226 Difference]: Without dead ends: 994 [2022-01-31 19:58:38,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4849 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=14754, Invalid=24648, Unknown=0, NotChecked=0, Total=39402 [2022-01-31 19:58:38,767 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2128 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 2390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2390 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:58:38,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2128 Valid, 34 Invalid, 4541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2390 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 19:58:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-01-31 19:58:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 606. [2022-01-31 19:58:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 502 states have (on average 1.0059760956175299) internal successors, (505), 502 states have internal predecessors, (505), 100 states have call successors, (100), 4 states have call predecessors, (100), 3 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-01-31 19:58:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 704 transitions. [2022-01-31 19:58:39,277 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 704 transitions. Word has length 975 [2022-01-31 19:58:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:58:39,278 INFO L470 AbstractCegarLoop]: Abstraction has 606 states and 704 transitions. [2022-01-31 19:58:39,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 3.00990099009901) internal successors, (304), 100 states have internal predecessors, (304), 99 states have call successors, (99), 4 states have call predecessors, (99), 2 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2022-01-31 19:58:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 704 transitions. [2022-01-31 19:58:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2022-01-31 19:58:39,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:58:39,283 INFO L514 BasicCegarLoop]: trace histogram [97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:58:39,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-01-31 19:58:39,284 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:58:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:58:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash 804718709, now seen corresponding path program 97 times [2022-01-31 19:58:39,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:58:39,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [525434253] [2022-01-31 19:58:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:58:39,286 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:58:39,286 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:58:39,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:58:39,305 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:58:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:58:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:58:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:58:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:58:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:58:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:58:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:58:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:58:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:58:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:58:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:58:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:58:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:58:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:58:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:58:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:58:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:58:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:58:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:58:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:58:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:58:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:58:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:58:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:58:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:58:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:58:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:58:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:58:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:58:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:58:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:58:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:58:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:58:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:58:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:58:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:58:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:58:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:58:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:58:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:58:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:58:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:58:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:58:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:58:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:58:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:58:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:58:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:58:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:58:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:58:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:58:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:58:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:58:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:58:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:58:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:58:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:58:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:58:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:58:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:58:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:58:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:58:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:58:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:58:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:58:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:58:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:58:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:58:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:58:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:58:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:58:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:58:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:58:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:58:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:58:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:58:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:58:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:58:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:58:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:58:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:58:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:58:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:58:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:58:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:58:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:58:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:58:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:58:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:58:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:58:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:58:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:58:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:58:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:58:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-01-31 19:58:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 759 [2022-01-31 19:58:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2022-01-31 19:58:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2022-01-31 19:58:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:58:42,705 INFO L134 CoverageAnalysis]: Checked inductivity of 18624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2022-01-31 19:58:42,705 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:58:42,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [525434253] [2022-01-31 19:58:42,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [525434253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:58:42,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:58:42,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-01-31 19:58:42,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283398329] [2022-01-31 19:58:42,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:58:42,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-01-31 19:58:42,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:58:42,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-01-31 19:58:42,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4955, Invalid=5347, Unknown=0, NotChecked=0, Total=10302 [2022-01-31 19:58:42,708 INFO L87 Difference]: Start difference. First operand 606 states and 704 transitions. Second operand has 102 states, 102 states have (on average 3.0098039215686274) internal successors, (307), 101 states have internal predecessors, (307), 100 states have call successors, (100), 4 states have call predecessors, (100), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-01-31 19:59:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:59:03,042 INFO L93 Difference]: Finished difference Result 1211 states and 1411 transitions. [2022-01-31 19:59:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-01-31 19:59:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 3.0098039215686274) internal successors, (307), 101 states have internal predecessors, (307), 100 states have call successors, (100), 4 states have call predecessors, (100), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Word has length 985 [2022-01-31 19:59:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:59:03,045 INFO L225 Difference]: With dead ends: 1211 [2022-01-31 19:59:03,045 INFO L226 Difference]: Without dead ends: 1004 [2022-01-31 19:59:03,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4948 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=15053, Invalid=25147, Unknown=0, NotChecked=0, Total=40200 [2022-01-31 19:59:03,047 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2182 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 2028 mSolverCounterSat, 2449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 4477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2449 IncrementalHoareTripleChecker+Valid, 2028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:59:03,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2182 Valid, 36 Invalid, 4477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2449 Valid, 2028 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 19:59:03,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2022-01-31 19:59:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 612. [2022-01-31 19:59:03,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 507 states have (on average 1.0059171597633136) internal successors, (510), 507 states have internal predecessors, (510), 101 states have call successors, (101), 4 states have call predecessors, (101), 3 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2022-01-31 19:59:03,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 711 transitions. [2022-01-31 19:59:03,566 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 711 transitions. Word has length 985 [2022-01-31 19:59:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:59:03,567 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 711 transitions. [2022-01-31 19:59:03,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 3.0098039215686274) internal successors, (307), 101 states have internal predecessors, (307), 100 states have call successors, (100), 4 states have call predecessors, (100), 2 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2022-01-31 19:59:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 711 transitions. [2022-01-31 19:59:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2022-01-31 19:59:03,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:59:03,572 INFO L514 BasicCegarLoop]: trace histogram [98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:59:03,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-01-31 19:59:03,572 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:59:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:59:03,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1146916878, now seen corresponding path program 98 times [2022-01-31 19:59:03,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:59:03,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709417240] [2022-01-31 19:59:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:59:03,575 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:59:03,575 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:59:03,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:59:03,594 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:59:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 19:59:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 19:59:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 19:59:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-01-31 19:59:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-31 19:59:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-31 19:59:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-01-31 19:59:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-31 19:59:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-31 19:59:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-01-31 19:59:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-31 19:59:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-31 19:59:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-01-31 19:59:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-31 19:59:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-31 19:59:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-01-31 19:59:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-31 19:59:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-31 19:59:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-01-31 19:59:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-01-31 19:59:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-01-31 19:59:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-01-31 19:59:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-01-31 19:59:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-01-31 19:59:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-01-31 19:59:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-01-31 19:59:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-01-31 19:59:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-01-31 19:59:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-01-31 19:59:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-01-31 19:59:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-01-31 19:59:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-01-31 19:59:06,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-01-31 19:59:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-01-31 19:59:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-01-31 19:59:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-01-31 19:59:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-01-31 19:59:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-01-31 19:59:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-01-31 19:59:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-01-31 19:59:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-01-31 19:59:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-01-31 19:59:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-01-31 19:59:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-01-31 19:59:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-01-31 19:59:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-01-31 19:59:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-01-31 19:59:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-01-31 19:59:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-01-31 19:59:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-01-31 19:59:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-01-31 19:59:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-01-31 19:59:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-01-31 19:59:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-01-31 19:59:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-01-31 19:59:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-01-31 19:59:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-01-31 19:59:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-01-31 19:59:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-01-31 19:59:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-01-31 19:59:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-01-31 19:59:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-01-31 19:59:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-01-31 19:59:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-01-31 19:59:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-01-31 19:59:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-01-31 19:59:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-01-31 19:59:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-01-31 19:59:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-01-31 19:59:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-01-31 19:59:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-01-31 19:59:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-01-31 19:59:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-01-31 19:59:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-01-31 19:59:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-01-31 19:59:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-01-31 19:59:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-01-31 19:59:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-01-31 19:59:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-01-31 19:59:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2022-01-31 19:59:07,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 639 [2022-01-31 19:59:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2022-01-31 19:59:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 655 [2022-01-31 19:59:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 663 [2022-01-31 19:59:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2022-01-31 19:59:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2022-01-31 19:59:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2022-01-31 19:59:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 695 [2022-01-31 19:59:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2022-01-31 19:59:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 711 [2022-01-31 19:59:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2022-01-31 19:59:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 727 [2022-01-31 19:59:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 735 [2022-01-31 19:59:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2022-01-31 19:59:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2022-01-31 19:59:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 759 [2022-01-31 19:59:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2022-01-31 19:59:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 775 [2022-01-31 19:59:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 783 [2022-01-31 19:59:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 19:59:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2022-01-31 19:59:07,033 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 19:59:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709417240] [2022-01-31 19:59:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [709417240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 19:59:07,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 19:59:07,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2022-01-31 19:59:07,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467262127] [2022-01-31 19:59:07,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 19:59:07,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-01-31 19:59:07,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 19:59:07,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-01-31 19:59:07,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5055, Invalid=5451, Unknown=0, NotChecked=0, Total=10506 [2022-01-31 19:59:07,037 INFO L87 Difference]: Start difference. First operand 612 states and 711 transitions. Second operand has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 102 states have internal predecessors, (310), 101 states have call successors, (101), 4 states have call predecessors, (101), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-01-31 19:59:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 19:59:28,621 INFO L93 Difference]: Finished difference Result 1223 states and 1425 transitions. [2022-01-31 19:59:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-01-31 19:59:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 102 states have internal predecessors, (310), 101 states have call successors, (101), 4 states have call predecessors, (101), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) Word has length 995 [2022-01-31 19:59:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 19:59:28,624 INFO L225 Difference]: With dead ends: 1223 [2022-01-31 19:59:28,624 INFO L226 Difference]: Without dead ends: 1014 [2022-01-31 19:59:28,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5048 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=15355, Invalid=25651, Unknown=0, NotChecked=0, Total=41006 [2022-01-31 19:59:28,626 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 2464 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1929 mSolverCounterSat, 2734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2734 IncrementalHoareTripleChecker+Valid, 1929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 19:59:28,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2464 Valid, 32 Invalid, 4663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2734 Valid, 1929 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 19:59:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2022-01-31 19:59:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 618. [2022-01-31 19:59:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 512 states have (on average 1.005859375) internal successors, (515), 512 states have internal predecessors, (515), 102 states have call successors, (102), 4 states have call predecessors, (102), 3 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2022-01-31 19:59:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 718 transitions. [2022-01-31 19:59:29,177 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 718 transitions. Word has length 995 [2022-01-31 19:59:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 19:59:29,177 INFO L470 AbstractCegarLoop]: Abstraction has 618 states and 718 transitions. [2022-01-31 19:59:29,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 3.0097087378640777) internal successors, (310), 102 states have internal predecessors, (310), 101 states have call successors, (101), 4 states have call predecessors, (101), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2022-01-31 19:59:29,177 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 718 transitions. [2022-01-31 19:59:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2022-01-31 19:59:29,187 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 19:59:29,187 INFO L514 BasicCegarLoop]: trace histogram [99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 19:59:29,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-01-31 19:59:29,187 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 19:59:29,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 19:59:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash -834979473, now seen corresponding path program 99 times [2022-01-31 19:59:29,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 19:59:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840466451] [2022-01-31 19:59:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 19:59:29,189 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 19:59:29,190 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 19:59:29,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 19:59:29,208 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 19:59:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat