/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/loop-crafted/simple_array_index_value_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 01:26:41,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 01:26:41,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 01:26:41,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 01:26:41,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-24 01:26:41,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 01:26:41,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 01:26:41,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 01:26:41,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 01:26:41,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-24 01:26:41,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 01:26:41,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 01:26:41,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 01:26:41,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:26:41,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 01:26:41,505 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-24 01:26:41,505 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 01:26:41,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 01:26:41,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 01:26:41,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 01:26:41,709 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 01:26:41,710 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 01:26:41,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-24 01:26:41,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79c7a723/1c911b6763c84d1ea371bc869c929185/FLAG8f86b3b0b [2022-02-24 01:26:42,131 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 01:26:42,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-24 01:26:42,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79c7a723/1c911b6763c84d1ea371bc869c929185/FLAG8f86b3b0b [2022-02-24 01:26:42,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d79c7a723/1c911b6763c84d1ea371bc869c929185 [2022-02-24 01:26:42,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 01:26:42,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 01:26:42,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 01:26:42,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 01:26:42,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 01:26:42,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d20b4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42, skipping insertion in model container [2022-02-24 01:26:42,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,576 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 01:26:42,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 01:26:42,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i[919,932] [2022-02-24 01:26:42,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:26:42,750 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 01:26:42,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i[919,932] [2022-02-24 01:26:42,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:26:42,771 INFO L208 MainTranslator]: Completed translation [2022-02-24 01:26:42,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42 WrapperNode [2022-02-24 01:26:42,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 01:26:42,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 01:26:42,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 01:26:42,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 01:26:42,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 01:26:42,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 01:26:42,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 01:26:42,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 01:26:42,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (1/1) ... [2022-02-24 01:26:42,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:26:42,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:26:42,830 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) [2022-02-24 01:26:42,847 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 [2022-02-24 01:26:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 01:26:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 01:26:42,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 01:26:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-24 01:26:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 01:26:42,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 01:26:42,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 01:26:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-24 01:26:42,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 01:26:42,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-24 01:26:42,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 01:26:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 01:26:42,964 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 01:26:42,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 01:26:43,052 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 01:26:43,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 01:26:43,058 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-24 01:26:43,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:26:43 BoogieIcfgContainer [2022-02-24 01:26:43,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 01:26:43,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 01:26:43,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 01:26:43,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 01:26:43,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 01:26:42" (1/3) ... [2022-02-24 01:26:43,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4186a064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:26:43, skipping insertion in model container [2022-02-24 01:26:43,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:26:42" (2/3) ... [2022-02-24 01:26:43,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4186a064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:26:43, skipping insertion in model container [2022-02-24 01:26:43,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:26:43" (3/3) ... [2022-02-24 01:26:43,066 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2022-02-24 01:26:43,070 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 01:26:43,070 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 01:26:43,106 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 01:26:43,112 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 [2022-02-24 01:26:43,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 01:26:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 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) [2022-02-24 01:26:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-24 01:26:43,129 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:43,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:43,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:43,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:43,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1210672905, now seen corresponding path program 1 times [2022-02-24 01:26:43,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:43,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820607986] [2022-02-24 01:26:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:43,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:43,192 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:26:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:26:43,316 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:43,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820607986] [2022-02-24 01:26:43,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [820607986] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:43,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:43,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-24 01:26:43,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261086979] [2022-02-24 01:26:43,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:43,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-24 01:26:43,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:43,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-24 01:26:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-24 01:26:43,353 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 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) [2022-02-24 01:26:43,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:43,450 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2022-02-24 01:26:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-24 01:26:43,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 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 13 [2022-02-24 01:26:43,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:43,458 INFO L225 Difference]: With dead ends: 62 [2022-02-24 01:26:43,458 INFO L226 Difference]: Without dead ends: 33 [2022-02-24 01:26:43,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:26:43,466 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:43,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 33 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:26:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-02-24 01:26:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2022-02-24 01:26:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-02-24 01:26:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-02-24 01:26:43,501 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 13 [2022-02-24 01:26:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:43,501 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-02-24 01:26:43,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 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) [2022-02-24 01:26:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-02-24 01:26:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-24 01:26:43,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:43,503 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] [2022-02-24 01:26:43,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 01:26:43,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:43,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:43,504 INFO L85 PathProgramCache]: Analyzing trace with hash 778735204, now seen corresponding path program 1 times [2022-02-24 01:26:43,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:43,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328077940] [2022-02-24 01:26:43,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:43,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:43,526 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:43,526 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:43,527 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-24 01:26:43,647 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:43,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328077940] [2022-02-24 01:26:43,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1328077940] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:43,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:43,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-24 01:26:43,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328121950] [2022-02-24 01:26:43,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:43,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-24 01:26:43,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-24 01:26:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-24 01:26:43,650 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-24 01:26:43,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:43,771 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-02-24 01:26:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-24 01:26:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-02-24 01:26:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:43,774 INFO L225 Difference]: With dead ends: 52 [2022-02-24 01:26:43,774 INFO L226 Difference]: Without dead ends: 41 [2022-02-24 01:26:43,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-24 01:26:43,777 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:43,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 31 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:26:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-24 01:26:43,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2022-02-24 01:26:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 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) [2022-02-24 01:26:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-02-24 01:26:43,791 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 21 [2022-02-24 01:26:43,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:43,792 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-02-24 01:26:43,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-24 01:26:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-02-24 01:26:43,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-24 01:26:43,793 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:43,794 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:43,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 01:26:43,794 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:43,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1692936895, now seen corresponding path program 2 times [2022-02-24 01:26:43,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:43,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428403785] [2022-02-24 01:26:43,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:43,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:43,802 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:43,802 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:43,802 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-24 01:26:43,930 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:43,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428403785] [2022-02-24 01:26:43,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [428403785] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:43,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:43,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 01:26:43,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251338250] [2022-02-24 01:26:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:43,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 01:26:43,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 01:26:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:26:43,932 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:26:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:44,110 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-02-24 01:26:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 01:26:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2022-02-24 01:26:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:44,114 INFO L225 Difference]: With dead ends: 60 [2022-02-24 01:26:44,114 INFO L226 Difference]: Without dead ends: 49 [2022-02-24 01:26:44,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-24 01:26:44,123 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 41 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:44,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 39 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:26:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-02-24 01:26:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2022-02-24 01:26:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 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) [2022-02-24 01:26:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-02-24 01:26:44,145 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 29 [2022-02-24 01:26:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:44,146 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-02-24 01:26:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:26:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-02-24 01:26:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-02-24 01:26:44,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:44,147 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:44,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 01:26:44,147 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash 912079898, now seen corresponding path program 3 times [2022-02-24 01:26:44,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:44,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365310257] [2022-02-24 01:26:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:44,158 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:44,159 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:44,159 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,390 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-24 01:26:44,391 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:44,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365310257] [2022-02-24 01:26:44,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1365310257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:44,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:44,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-24 01:26:44,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281106101] [2022-02-24 01:26:44,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:44,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-24 01:26:44,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:44,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-24 01:26:44,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-24 01:26:44,393 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 01:26:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:44,581 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-02-24 01:26:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-24 01:26:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-02-24 01:26:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:44,582 INFO L225 Difference]: With dead ends: 68 [2022-02-24 01:26:44,582 INFO L226 Difference]: Without dead ends: 57 [2022-02-24 01:26:44,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-24 01:26:44,584 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 53 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:44,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 37 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:26:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-02-24 01:26:44,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2022-02-24 01:26:44,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 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) [2022-02-24 01:26:44,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-02-24 01:26:44,595 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 37 [2022-02-24 01:26:44,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:44,595 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-02-24 01:26:44,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 01:26:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-02-24 01:26:44,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-24 01:26:44,596 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:44,597 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:44,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 01:26:44,597 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:44,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash 42254965, now seen corresponding path program 4 times [2022-02-24 01:26:44,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:44,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398764179] [2022-02-24 01:26:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:44,602 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:44,602 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:44,603 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-24 01:26:44,755 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:44,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398764179] [2022-02-24 01:26:44,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [398764179] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:44,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:44,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 01:26:44,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488370913] [2022-02-24 01:26:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:44,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 01:26:44,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 01:26:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-24 01:26:44,757 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-24 01:26:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:45,018 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2022-02-24 01:26:45,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 01:26:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 45 [2022-02-24 01:26:45,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:45,021 INFO L225 Difference]: With dead ends: 76 [2022-02-24 01:26:45,021 INFO L226 Difference]: Without dead ends: 65 [2022-02-24 01:26:45,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-02-24 01:26:45,025 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:45,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 45 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:26:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-02-24 01:26:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2022-02-24 01:26:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 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) [2022-02-24 01:26:45,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-02-24 01:26:45,048 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 45 [2022-02-24 01:26:45,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:45,049 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-02-24 01:26:45,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-24 01:26:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-02-24 01:26:45,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-24 01:26:45,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:45,052 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:45,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 01:26:45,052 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1041874384, now seen corresponding path program 5 times [2022-02-24 01:26:45,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:45,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861552258] [2022-02-24 01:26:45,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:45,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:45,060 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:45,060 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:45,060 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-02-24 01:26:45,236 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:45,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861552258] [2022-02-24 01:26:45,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [861552258] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:45,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:45,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-24 01:26:45,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392533878] [2022-02-24 01:26:45,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:45,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-24 01:26:45,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-24 01:26:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-24 01:26:45,240 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-24 01:26:45,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:45,558 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-02-24 01:26:45,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-24 01:26:45,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 53 [2022-02-24 01:26:45,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:45,560 INFO L225 Difference]: With dead ends: 84 [2022-02-24 01:26:45,560 INFO L226 Difference]: Without dead ends: 73 [2022-02-24 01:26:45,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-24 01:26:45,561 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:45,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 58 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:26:45,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-02-24 01:26:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 46. [2022-02-24 01:26:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 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) [2022-02-24 01:26:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-02-24 01:26:45,573 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 53 [2022-02-24 01:26:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:45,573 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-02-24 01:26:45,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-24 01:26:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-02-24 01:26:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-24 01:26:45,574 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:45,574 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:45,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 01:26:45,575 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:45,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1926704683, now seen corresponding path program 6 times [2022-02-24 01:26:45,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:45,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273794867] [2022-02-24 01:26:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:45,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:45,579 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:45,579 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:45,580 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:45,788 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-24 01:26:45,788 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:45,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273794867] [2022-02-24 01:26:45,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [273794867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:45,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:45,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 01:26:45,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282090680] [2022-02-24 01:26:45,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:45,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 01:26:45,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:45,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 01:26:45,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-24 01:26:45,790 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-24 01:26:46,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:46,175 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2022-02-24 01:26:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 01:26:46,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 61 [2022-02-24 01:26:46,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:46,177 INFO L225 Difference]: With dead ends: 92 [2022-02-24 01:26:46,177 INFO L226 Difference]: Without dead ends: 81 [2022-02-24 01:26:46,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-02-24 01:26:46,178 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 77 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:46,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 61 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:26:46,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-02-24 01:26:46,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2022-02-24 01:26:46,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 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) [2022-02-24 01:26:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-02-24 01:26:46,199 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 61 [2022-02-24 01:26:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:46,201 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-02-24 01:26:46,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-24 01:26:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-02-24 01:26:46,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-24 01:26:46,203 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:46,203 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:46,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 01:26:46,203 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:46,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:46,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1064833926, now seen corresponding path program 7 times [2022-02-24 01:26:46,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:46,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199913603] [2022-02-24 01:26:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:46,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:46,210 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:46,211 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:46,211 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-24 01:26:46,390 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:46,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199913603] [2022-02-24 01:26:46,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [199913603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:46,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:46,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-24 01:26:46,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390182656] [2022-02-24 01:26:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:46,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-24 01:26:46,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:46,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-24 01:26:46,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-24 01:26:46,393 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-24 01:26:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:46,836 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2022-02-24 01:26:46,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-24 01:26:46,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 69 [2022-02-24 01:26:46,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:46,837 INFO L225 Difference]: With dead ends: 100 [2022-02-24 01:26:46,837 INFO L226 Difference]: Without dead ends: 89 [2022-02-24 01:26:46,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-02-24 01:26:46,838 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 87 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:46,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 64 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:26:46,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-02-24 01:26:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 54. [2022-02-24 01:26:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 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) [2022-02-24 01:26:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-02-24 01:26:46,852 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 69 [2022-02-24 01:26:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:46,852 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-02-24 01:26:46,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-24 01:26:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-02-24 01:26:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-24 01:26:46,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:46,853 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:46,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 01:26:46,854 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:46,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1471639009, now seen corresponding path program 8 times [2022-02-24 01:26:46,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:46,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690411528] [2022-02-24 01:26:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:46,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:46,858 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:46,858 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:46,858 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-24 01:26:47,069 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:47,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690411528] [2022-02-24 01:26:47,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1690411528] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:47,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:47,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 01:26:47,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367951767] [2022-02-24 01:26:47,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:47,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 01:26:47,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:47,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 01:26:47,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-24 01:26:47,079 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-24 01:26:47,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:47,578 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2022-02-24 01:26:47,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-24 01:26:47,579 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 77 [2022-02-24 01:26:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:47,581 INFO L225 Difference]: With dead ends: 108 [2022-02-24 01:26:47,581 INFO L226 Difference]: Without dead ends: 97 [2022-02-24 01:26:47,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-02-24 01:26:47,583 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:47,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 52 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:26:47,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-02-24 01:26:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2022-02-24 01:26:47,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 states have internal predecessors, (44), 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) [2022-02-24 01:26:47,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-02-24 01:26:47,607 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 77 [2022-02-24 01:26:47,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:47,608 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-02-24 01:26:47,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-24 01:26:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-02-24 01:26:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-24 01:26:47,610 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:47,611 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:47,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 01:26:47,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash -2075116228, now seen corresponding path program 9 times [2022-02-24 01:26:47,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:47,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799081003] [2022-02-24 01:26:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:47,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:47,615 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:47,615 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:47,616 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-24 01:26:47,803 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:47,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799081003] [2022-02-24 01:26:47,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [799081003] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:47,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:47,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-24 01:26:47,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578608149] [2022-02-24 01:26:47,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:47,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-24 01:26:47,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:47,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-24 01:26:47,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-02-24 01:26:47,805 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-24 01:26:48,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:48,453 INFO L93 Difference]: Finished difference Result 116 states and 138 transitions. [2022-02-24 01:26:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-24 01:26:48,454 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 85 [2022-02-24 01:26:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:48,455 INFO L225 Difference]: With dead ends: 116 [2022-02-24 01:26:48,455 INFO L226 Difference]: Without dead ends: 105 [2022-02-24 01:26:48,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-02-24 01:26:48,456 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:48,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 80 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:26:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-02-24 01:26:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 62. [2022-02-24 01:26:48,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 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) [2022-02-24 01:26:48,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-02-24 01:26:48,470 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 85 [2022-02-24 01:26:48,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:48,471 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-02-24 01:26:48,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-24 01:26:48,471 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-02-24 01:26:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-24 01:26:48,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:48,472 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:48,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 01:26:48,472 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:48,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1560444521, now seen corresponding path program 10 times [2022-02-24 01:26:48,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:48,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050367431] [2022-02-24 01:26:48,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:48,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:48,476 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:48,477 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:48,477 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:48,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-24 01:26:48,685 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:48,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050367431] [2022-02-24 01:26:48,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1050367431] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:48,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:48,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 01:26:48,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135556327] [2022-02-24 01:26:48,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:48,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 01:26:48,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:48,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 01:26:48,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-24 01:26:48,704 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-24 01:26:49,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:49,406 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2022-02-24 01:26:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-24 01:26:49,406 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 93 [2022-02-24 01:26:49,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:49,407 INFO L225 Difference]: With dead ends: 124 [2022-02-24 01:26:49,407 INFO L226 Difference]: Without dead ends: 113 [2022-02-24 01:26:49,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-02-24 01:26:49,409 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:49,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 68 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:26:49,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-02-24 01:26:49,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 66. [2022-02-24 01:26:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 48 states have internal predecessors, (50), 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) [2022-02-24 01:26:49,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-02-24 01:26:49,423 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 93 [2022-02-24 01:26:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:49,423 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-02-24 01:26:49,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-24 01:26:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-02-24 01:26:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-24 01:26:49,425 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:49,425 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:49,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 01:26:49,425 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:49,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1501938958, now seen corresponding path program 11 times [2022-02-24 01:26:49,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:49,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1447694873] [2022-02-24 01:26:49,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:49,429 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:49,429 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:49,429 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-02-24 01:26:49,646 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:49,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1447694873] [2022-02-24 01:26:49,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1447694873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:49,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:49,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-24 01:26:49,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962402042] [2022-02-24 01:26:49,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:49,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-24 01:26:49,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-24 01:26:49,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-24 01:26:49,648 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-24 01:26:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:50,397 INFO L93 Difference]: Finished difference Result 132 states and 158 transitions. [2022-02-24 01:26:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-24 01:26:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 101 [2022-02-24 01:26:50,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:50,398 INFO L225 Difference]: With dead ends: 132 [2022-02-24 01:26:50,398 INFO L226 Difference]: Without dead ends: 121 [2022-02-24 01:26:50,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2022-02-24 01:26:50,413 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 135 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:50,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 56 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:26:50,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-02-24 01:26:50,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 70. [2022-02-24 01:26:50,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 51 states have internal predecessors, (53), 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) [2022-02-24 01:26:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2022-02-24 01:26:50,430 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 101 [2022-02-24 01:26:50,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:50,430 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2022-02-24 01:26:50,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-24 01:26:50,430 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2022-02-24 01:26:50,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-24 01:26:50,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:50,431 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:50,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 01:26:50,431 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:50,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1769903795, now seen corresponding path program 12 times [2022-02-24 01:26:50,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:50,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754900425] [2022-02-24 01:26:50,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:50,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:50,436 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:50,436 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:50,436 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-02-24 01:26:50,671 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:50,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754900425] [2022-02-24 01:26:50,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [754900425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:50,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:50,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 01:26:50,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343123867] [2022-02-24 01:26:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:50,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 01:26:50,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:50,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 01:26:50,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-02-24 01:26:50,673 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 01:26:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:51,595 INFO L93 Difference]: Finished difference Result 140 states and 168 transitions. [2022-02-24 01:26:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-24 01:26:51,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 109 [2022-02-24 01:26:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:51,599 INFO L225 Difference]: With dead ends: 140 [2022-02-24 01:26:51,599 INFO L226 Difference]: Without dead ends: 129 [2022-02-24 01:26:51,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2022-02-24 01:26:51,601 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 139 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:51,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 74 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:26:51,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-02-24 01:26:51,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 74. [2022-02-24 01:26:51,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 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) [2022-02-24 01:26:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2022-02-24 01:26:51,624 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 109 [2022-02-24 01:26:51,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:51,624 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2022-02-24 01:26:51,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 01:26:51,624 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2022-02-24 01:26:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-24 01:26:51,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:51,627 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:51,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 01:26:51,627 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:51,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:51,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1882321752, now seen corresponding path program 13 times [2022-02-24 01:26:51,628 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:51,628 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73602867] [2022-02-24 01:26:51,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:51,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:51,634 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:51,634 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:51,634 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:26:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-02-24 01:26:51,945 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:51,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73602867] [2022-02-24 01:26:51,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [73602867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:51,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:51,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-24 01:26:51,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897511553] [2022-02-24 01:26:51,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:51,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-24 01:26:51,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-24 01:26:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-02-24 01:26:51,947 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-24 01:26:53,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:53,087 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-02-24 01:26:53,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-24 01:26:53,088 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 117 [2022-02-24 01:26:53,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:53,089 INFO L225 Difference]: With dead ends: 148 [2022-02-24 01:26:53,089 INFO L226 Difference]: Without dead ends: 137 [2022-02-24 01:26:53,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2022-02-24 01:26:53,090 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 129 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:53,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 127 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 01:26:53,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-02-24 01:26:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 78. [2022-02-24 01:26:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 57 states have internal predecessors, (59), 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) [2022-02-24 01:26:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2022-02-24 01:26:53,107 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 117 [2022-02-24 01:26:53,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:53,108 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2022-02-24 01:26:53,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-24 01:26:53,108 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2022-02-24 01:26:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-24 01:26:53,109 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:53,109 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:53,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 01:26:53,109 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:53,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:53,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1004854013, now seen corresponding path program 14 times [2022-02-24 01:26:53,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:53,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240519262] [2022-02-24 01:26:53,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:53,113 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:53,113 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:53,113 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:26:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:26:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:53,394 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-24 01:26:53,394 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:53,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240519262] [2022-02-24 01:26:53,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [240519262] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:53,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:53,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 01:26:53,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11095894] [2022-02-24 01:26:53,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:53,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 01:26:53,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:53,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 01:26:53,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-02-24 01:26:53,396 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-24 01:26:54,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:54,542 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2022-02-24 01:26:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-24 01:26:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 125 [2022-02-24 01:26:54,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:54,544 INFO L225 Difference]: With dead ends: 156 [2022-02-24 01:26:54,544 INFO L226 Difference]: Without dead ends: 145 [2022-02-24 01:26:54,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2022-02-24 01:26:54,546 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 153 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:54,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 95 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 01:26:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-02-24 01:26:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 82. [2022-02-24 01:26:54,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 60 states have internal predecessors, (62), 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) [2022-02-24 01:26:54,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2022-02-24 01:26:54,566 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 125 [2022-02-24 01:26:54,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:54,566 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2022-02-24 01:26:54,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-24 01:26:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2022-02-24 01:26:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-24 01:26:54,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:54,567 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:54,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 01:26:54,568 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:54,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2049159774, now seen corresponding path program 15 times [2022-02-24 01:26:54,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:54,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187842617] [2022-02-24 01:26:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:54,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:54,572 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:54,572 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:54,572 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:26:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:26:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:26:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-02-24 01:26:54,873 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:54,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187842617] [2022-02-24 01:26:54,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [187842617] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:54,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:54,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-24 01:26:54,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465699157] [2022-02-24 01:26:54,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:54,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-24 01:26:54,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-24 01:26:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-02-24 01:26:54,874 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 01:26:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:56,127 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2022-02-24 01:26:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-24 01:26:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 133 [2022-02-24 01:26:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:56,130 INFO L225 Difference]: With dead ends: 164 [2022-02-24 01:26:56,130 INFO L226 Difference]: Without dead ends: 153 [2022-02-24 01:26:56,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2022-02-24 01:26:56,131 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 159 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:56,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 108 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:26:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-02-24 01:26:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2022-02-24 01:26:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 63 states have internal predecessors, (65), 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) [2022-02-24 01:26:56,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2022-02-24 01:26:56,152 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 133 [2022-02-24 01:26:56,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:56,152 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2022-02-24 01:26:56,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 01:26:56,153 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2022-02-24 01:26:56,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-24 01:26:56,154 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:56,154 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:56,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 01:26:56,154 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:56,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:56,154 INFO L85 PathProgramCache]: Analyzing trace with hash 228766905, now seen corresponding path program 16 times [2022-02-24 01:26:56,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:56,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357076828] [2022-02-24 01:26:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:56,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:56,158 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:56,158 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:56,158 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:26:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:26:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:26:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:26:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:56,481 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-02-24 01:26:56,482 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:56,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357076828] [2022-02-24 01:26:56,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1357076828] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:56,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:56,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 01:26:56,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050406121] [2022-02-24 01:26:56,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:56,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 01:26:56,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 01:26:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-24 01:26:56,483 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-24 01:26:57,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:57,994 INFO L93 Difference]: Finished difference Result 172 states and 208 transitions. [2022-02-24 01:26:57,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-24 01:26:57,994 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 141 [2022-02-24 01:26:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:57,995 INFO L225 Difference]: With dead ends: 172 [2022-02-24 01:26:57,995 INFO L226 Difference]: Without dead ends: 161 [2022-02-24 01:26:57,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=1179, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 01:26:57,996 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 155 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:57,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 146 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-24 01:26:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-02-24 01:26:58,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 90. [2022-02-24 01:26:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 66 states have internal predecessors, (68), 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) [2022-02-24 01:26:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2022-02-24 01:26:58,019 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 141 [2022-02-24 01:26:58,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:58,019 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2022-02-24 01:26:58,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-24 01:26:58,019 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2022-02-24 01:26:58,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-24 01:26:58,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:58,021 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:58,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 01:26:58,021 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:58,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:58,021 INFO L85 PathProgramCache]: Analyzing trace with hash -279761900, now seen corresponding path program 17 times [2022-02-24 01:26:58,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:58,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293199701] [2022-02-24 01:26:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:58,025 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:58,025 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:58,025 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:26:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:26:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:26:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:26:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:26:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:26:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:26:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:26:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:26:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:26:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:26:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:26:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:26:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:26:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:26:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:26:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:26:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:26:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:26:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-02-24 01:26:58,374 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:26:58,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293199701] [2022-02-24 01:26:58,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [293199701] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:26:58,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:26:58,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-24 01:26:58,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018338297] [2022-02-24 01:26:58,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:26:58,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-24 01:26:58,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:26:58,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-24 01:26:58,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-02-24 01:26:58,376 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-24 01:26:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:26:59,835 INFO L93 Difference]: Finished difference Result 180 states and 218 transitions. [2022-02-24 01:26:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-24 01:26:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 149 [2022-02-24 01:26:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:26:59,836 INFO L225 Difference]: With dead ends: 180 [2022-02-24 01:26:59,836 INFO L226 Difference]: Without dead ends: 169 [2022-02-24 01:26:59,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=1320, Unknown=0, NotChecked=0, Total=1482 [2022-02-24 01:26:59,837 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 183 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:26:59,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 104 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 01:26:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-02-24 01:26:59,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 94. [2022-02-24 01:26:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 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) [2022-02-24 01:26:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2022-02-24 01:26:59,861 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 149 [2022-02-24 01:26:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:26:59,861 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2022-02-24 01:26:59,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-24 01:26:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2022-02-24 01:26:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-24 01:26:59,862 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:26:59,862 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:26:59,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 01:26:59,863 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:26:59,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:26:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1527768977, now seen corresponding path program 18 times [2022-02-24 01:26:59,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:26:59,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573477073] [2022-02-24 01:26:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:26:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:26:59,866 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:26:59,867 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:26:59,867 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:26:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-02-24 01:27:00,270 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:00,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573477073] [2022-02-24 01:27:00,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [573477073] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:00,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:00,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 01:27:00,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46766623] [2022-02-24 01:27:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 01:27:00,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:00,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 01:27:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-02-24 01:27:00,272 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-24 01:27:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:01,828 INFO L93 Difference]: Finished difference Result 188 states and 228 transitions. [2022-02-24 01:27:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-24 01:27:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 157 [2022-02-24 01:27:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:01,831 INFO L225 Difference]: With dead ends: 188 [2022-02-24 01:27:01,832 INFO L226 Difference]: Without dead ends: 177 [2022-02-24 01:27:01,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2022-02-24 01:27:01,833 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 205 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:01,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 77 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-24 01:27:01,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-02-24 01:27:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 98. [2022-02-24 01:27:01,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 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) [2022-02-24 01:27:01,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2022-02-24 01:27:01,873 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 157 [2022-02-24 01:27:01,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:01,873 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2022-02-24 01:27:01,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-24 01:27:01,873 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2022-02-24 01:27:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-24 01:27:01,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:01,877 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:01,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 01:27:01,877 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash -919307830, now seen corresponding path program 19 times [2022-02-24 01:27:01,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:01,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177819554] [2022-02-24 01:27:01,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:01,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:01,881 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:01,882 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:01,882 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-02-24 01:27:02,291 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:02,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177819554] [2022-02-24 01:27:02,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1177819554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:02,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:02,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-24 01:27:02,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117800153] [2022-02-24 01:27:02,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:02,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-24 01:27:02,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:02,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-24 01:27:02,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-02-24 01:27:02,293 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-24 01:27:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:04,010 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2022-02-24 01:27:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-24 01:27:04,011 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 165 [2022-02-24 01:27:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:04,013 INFO L225 Difference]: With dead ends: 196 [2022-02-24 01:27:04,013 INFO L226 Difference]: Without dead ends: 185 [2022-02-24 01:27:04,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-02-24 01:27:04,014 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 201 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:04,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 115 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-24 01:27:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-24 01:27:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 102. [2022-02-24 01:27:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 75 states have internal predecessors, (77), 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) [2022-02-24 01:27:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2022-02-24 01:27:04,039 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 165 [2022-02-24 01:27:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:04,039 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2022-02-24 01:27:04,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-24 01:27:04,039 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2022-02-24 01:27:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-24 01:27:04,040 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:04,040 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:04,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 01:27:04,040 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:04,041 INFO L85 PathProgramCache]: Analyzing trace with hash 198922277, now seen corresponding path program 20 times [2022-02-24 01:27:04,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:04,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097024101] [2022-02-24 01:27:04,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:04,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:04,044 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:04,044 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:04,045 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-02-24 01:27:04,477 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:04,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097024101] [2022-02-24 01:27:04,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2097024101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:04,477 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:04,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 01:27:04,478 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601980101] [2022-02-24 01:27:04,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:04,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 01:27:04,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:04,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 01:27:04,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-02-24 01:27:04,480 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-24 01:27:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:06,282 INFO L93 Difference]: Finished difference Result 204 states and 248 transitions. [2022-02-24 01:27:06,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-24 01:27:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 173 [2022-02-24 01:27:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:06,283 INFO L225 Difference]: With dead ends: 204 [2022-02-24 01:27:06,283 INFO L226 Difference]: Without dead ends: 193 [2022-02-24 01:27:06,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=189, Invalid=1791, Unknown=0, NotChecked=0, Total=1980 [2022-02-24 01:27:06,285 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 221 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:06,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 93 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-24 01:27:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-02-24 01:27:06,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2022-02-24 01:27:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 78 states have internal predecessors, (80), 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) [2022-02-24 01:27:06,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2022-02-24 01:27:06,309 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 173 [2022-02-24 01:27:06,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:06,310 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2022-02-24 01:27:06,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-24 01:27:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2022-02-24 01:27:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-24 01:27:06,317 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:06,318 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:06,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 01:27:06,318 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:06,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash 832543616, now seen corresponding path program 21 times [2022-02-24 01:27:06,318 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:06,318 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [622161205] [2022-02-24 01:27:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:06,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:06,325 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:06,325 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:06,325 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-02-24 01:27:06,818 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:06,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [622161205] [2022-02-24 01:27:06,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [622161205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:06,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:06,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-24 01:27:06,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693387464] [2022-02-24 01:27:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:06,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-24 01:27:06,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-24 01:27:06,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-02-24 01:27:06,820 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-24 01:27:09,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:09,083 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2022-02-24 01:27:09,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-24 01:27:09,084 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 181 [2022-02-24 01:27:09,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:09,086 INFO L225 Difference]: With dead ends: 212 [2022-02-24 01:27:09,086 INFO L226 Difference]: Without dead ends: 201 [2022-02-24 01:27:09,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-02-24 01:27:09,089 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 193 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 4990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:09,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 191 Invalid, 4990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 01:27:09,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-02-24 01:27:09,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 110. [2022-02-24 01:27:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.0246913580246915) internal successors, (83), 81 states have internal predecessors, (83), 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) [2022-02-24 01:27:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2022-02-24 01:27:09,123 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 181 [2022-02-24 01:27:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:09,124 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2022-02-24 01:27:09,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-24 01:27:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2022-02-24 01:27:09,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-24 01:27:09,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:09,126 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:09,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 01:27:09,127 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 339499995, now seen corresponding path program 22 times [2022-02-24 01:27:09,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:09,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651919311] [2022-02-24 01:27:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:09,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:09,133 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:09,133 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:09,133 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-02-24 01:27:09,613 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:09,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651919311] [2022-02-24 01:27:09,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [651919311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:09,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:09,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 01:27:09,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577682019] [2022-02-24 01:27:09,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:09,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 01:27:09,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:09,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 01:27:09,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-02-24 01:27:09,616 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-24 01:27:11,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:11,747 INFO L93 Difference]: Finished difference Result 220 states and 268 transitions. [2022-02-24 01:27:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-24 01:27:11,748 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 189 [2022-02-24 01:27:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:11,750 INFO L225 Difference]: With dead ends: 220 [2022-02-24 01:27:11,750 INFO L226 Difference]: Without dead ends: 209 [2022-02-24 01:27:11,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=2145, Unknown=0, NotChecked=0, Total=2352 [2022-02-24 01:27:11,751 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 4280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:11,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 89 Invalid, 4280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 4004 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-24 01:27:11,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-24 01:27:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 114. [2022-02-24 01:27:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.0238095238095237) internal successors, (86), 84 states have internal predecessors, (86), 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) [2022-02-24 01:27:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-02-24 01:27:11,785 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 189 [2022-02-24 01:27:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:11,785 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-02-24 01:27:11,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-24 01:27:11,786 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-02-24 01:27:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-24 01:27:11,787 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:11,788 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:11,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 01:27:11,788 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1569943242, now seen corresponding path program 23 times [2022-02-24 01:27:11,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:11,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559879577] [2022-02-24 01:27:11,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:11,792 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:11,793 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:11,793 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:12,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2022-02-24 01:27:12,312 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:12,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559879577] [2022-02-24 01:27:12,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [559879577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:12,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:12,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-24 01:27:12,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538294613] [2022-02-24 01:27:12,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:12,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-24 01:27:12,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:12,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-24 01:27:12,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-02-24 01:27:12,314 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-24 01:27:14,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:14,675 INFO L93 Difference]: Finished difference Result 228 states and 278 transitions. [2022-02-24 01:27:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-24 01:27:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 197 [2022-02-24 01:27:14,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:14,676 INFO L225 Difference]: With dead ends: 228 [2022-02-24 01:27:14,676 INFO L226 Difference]: Without dead ends: 217 [2022-02-24 01:27:14,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=216, Invalid=2334, Unknown=0, NotChecked=0, Total=2550 [2022-02-24 01:27:14,678 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 227 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:14,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 162 Invalid, 5427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 01:27:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-24 01:27:14,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 118. [2022-02-24 01:27:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 87 states have internal predecessors, (89), 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) [2022-02-24 01:27:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2022-02-24 01:27:14,714 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 197 [2022-02-24 01:27:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:14,714 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2022-02-24 01:27:14,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-24 01:27:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2022-02-24 01:27:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-24 01:27:14,716 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:14,716 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:14,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 01:27:14,716 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:14,716 INFO L85 PathProgramCache]: Analyzing trace with hash -538231919, now seen corresponding path program 24 times [2022-02-24 01:27:14,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:14,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646825899] [2022-02-24 01:27:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:14,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:14,720 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:14,720 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:14,720 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-02-24 01:27:15,272 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:15,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646825899] [2022-02-24 01:27:15,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1646825899] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:15,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:15,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 01:27:15,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660766366] [2022-02-24 01:27:15,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:15,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 01:27:15,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 01:27:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-24 01:27:15,273 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-24 01:27:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:18,148 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2022-02-24 01:27:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-24 01:27:18,149 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 205 [2022-02-24 01:27:18,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:18,150 INFO L225 Difference]: With dead ends: 236 [2022-02-24 01:27:18,150 INFO L226 Difference]: Without dead ends: 225 [2022-02-24 01:27:18,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=225, Invalid=2531, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 01:27:18,152 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 217 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 6166 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 6418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 6166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:18,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 215 Invalid, 6418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 6166 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 01:27:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-02-24 01:27:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 122. [2022-02-24 01:27:18,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 90 states have internal predecessors, (92), 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) [2022-02-24 01:27:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 147 transitions. [2022-02-24 01:27:18,190 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 147 transitions. Word has length 205 [2022-02-24 01:27:18,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:18,190 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 147 transitions. [2022-02-24 01:27:18,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-24 01:27:18,191 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 147 transitions. [2022-02-24 01:27:18,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-24 01:27:18,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:18,192 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:18,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 01:27:18,192 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash -445424916, now seen corresponding path program 25 times [2022-02-24 01:27:18,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:18,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212869268] [2022-02-24 01:27:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:18,200 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:18,200 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:18,200 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-02-24 01:27:18,762 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:18,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212869268] [2022-02-24 01:27:18,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [212869268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:18,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:18,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-24 01:27:18,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121423770] [2022-02-24 01:27:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:18,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-24 01:27:18,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-24 01:27:18,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-02-24 01:27:18,764 INFO L87 Difference]: Start difference. First operand 122 states and 147 transitions. Second operand has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-24 01:27:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:21,547 INFO L93 Difference]: Finished difference Result 244 states and 298 transitions. [2022-02-24 01:27:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-24 01:27:21,548 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 213 [2022-02-24 01:27:21,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:21,549 INFO L225 Difference]: With dead ends: 244 [2022-02-24 01:27:21,549 INFO L226 Difference]: Without dead ends: 233 [2022-02-24 01:27:21,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=234, Invalid=2736, Unknown=0, NotChecked=0, Total=2970 [2022-02-24 01:27:21,551 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 247 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 6285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:21,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 168 Invalid, 6285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-24 01:27:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-02-24 01:27:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 126. [2022-02-24 01:27:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 93 states have (on average 1.021505376344086) internal successors, (95), 93 states have internal predecessors, (95), 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) [2022-02-24 01:27:21,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2022-02-24 01:27:21,580 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 213 [2022-02-24 01:27:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:21,580 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2022-02-24 01:27:21,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-24 01:27:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2022-02-24 01:27:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-24 01:27:21,582 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:21,582 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:21,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 01:27:21,582 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash -524292281, now seen corresponding path program 26 times [2022-02-24 01:27:21,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:21,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966133509] [2022-02-24 01:27:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:21,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:21,585 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:21,586 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:21,586 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:22,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2022-02-24 01:27:22,165 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:22,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966133509] [2022-02-24 01:27:22,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [966133509] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:22,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:22,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 01:27:22,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894277895] [2022-02-24 01:27:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:22,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 01:27:22,166 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 01:27:22,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2022-02-24 01:27:22,167 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-24 01:27:25,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:25,074 INFO L93 Difference]: Finished difference Result 252 states and 308 transitions. [2022-02-24 01:27:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-24 01:27:25,075 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 221 [2022-02-24 01:27:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:25,076 INFO L225 Difference]: With dead ends: 252 [2022-02-24 01:27:25,076 INFO L226 Difference]: Without dead ends: 241 [2022-02-24 01:27:25,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=243, Invalid=2949, Unknown=0, NotChecked=0, Total=3192 [2022-02-24 01:27:25,077 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 263 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6253 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 6253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:25,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 156 Invalid, 6555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 6253 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 01:27:25,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-24 01:27:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 130. [2022-02-24 01:27:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 96 states have internal predecessors, (98), 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) [2022-02-24 01:27:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2022-02-24 01:27:25,115 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 221 [2022-02-24 01:27:25,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:25,115 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2022-02-24 01:27:25,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-24 01:27:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2022-02-24 01:27:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-24 01:27:25,116 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:25,116 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:25,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 01:27:25,117 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash 344717474, now seen corresponding path program 27 times [2022-02-24 01:27:25,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:25,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570946856] [2022-02-24 01:27:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:25,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:25,121 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:25,121 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:25,121 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-02-24 01:27:25,753 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:25,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570946856] [2022-02-24 01:27:25,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1570946856] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:25,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:25,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-02-24 01:27:25,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973164045] [2022-02-24 01:27:25,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:25,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-24 01:27:25,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-24 01:27:25,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2022-02-24 01:27:25,755 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-24 01:27:29,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:29,178 INFO L93 Difference]: Finished difference Result 260 states and 318 transitions. [2022-02-24 01:27:29,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-24 01:27:29,178 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 229 [2022-02-24 01:27:29,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:29,180 INFO L225 Difference]: With dead ends: 260 [2022-02-24 01:27:29,180 INFO L226 Difference]: Without dead ends: 249 [2022-02-24 01:27:29,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=252, Invalid=3170, Unknown=0, NotChecked=0, Total=3422 [2022-02-24 01:27:29,181 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 241 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7744 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 7744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:29,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 239 Invalid, 8026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 7744 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 01:27:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-02-24 01:27:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 134. [2022-02-24 01:27:29,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 99 states have (on average 1.02020202020202) internal successors, (101), 99 states have internal predecessors, (101), 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) [2022-02-24 01:27:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2022-02-24 01:27:29,214 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 229 [2022-02-24 01:27:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:29,215 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2022-02-24 01:27:29,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-24 01:27:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2022-02-24 01:27:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-24 01:27:29,216 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:29,216 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:29,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 01:27:29,216 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:29,217 INFO L85 PathProgramCache]: Analyzing trace with hash -661489923, now seen corresponding path program 28 times [2022-02-24 01:27:29,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:29,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786530862] [2022-02-24 01:27:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:29,221 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:29,221 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:29,221 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:29,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2022-02-24 01:27:29,819 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:29,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786530862] [2022-02-24 01:27:29,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1786530862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:29,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:29,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 01:27:29,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613138012] [2022-02-24 01:27:29,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:29,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 01:27:29,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:29,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 01:27:29,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-02-24 01:27:29,821 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-24 01:27:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:33,508 INFO L93 Difference]: Finished difference Result 268 states and 328 transitions. [2022-02-24 01:27:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-24 01:27:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 237 [2022-02-24 01:27:33,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:33,510 INFO L225 Difference]: With dead ends: 268 [2022-02-24 01:27:33,510 INFO L226 Difference]: Without dead ends: 257 [2022-02-24 01:27:33,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=261, Invalid=3399, Unknown=0, NotChecked=0, Total=3660 [2022-02-24 01:27:33,512 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 259 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 7975 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 8277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 7975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:33,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 222 Invalid, 8277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 7975 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-24 01:27:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-24 01:27:33,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 138. [2022-02-24 01:27:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 102 states have internal predecessors, (104), 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) [2022-02-24 01:27:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2022-02-24 01:27:33,547 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 237 [2022-02-24 01:27:33,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:33,547 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2022-02-24 01:27:33,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-24 01:27:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2022-02-24 01:27:33,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-02-24 01:27:33,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:33,548 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:33,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 01:27:33,549 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:33,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:33,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1718719912, now seen corresponding path program 29 times [2022-02-24 01:27:33,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:33,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312950570] [2022-02-24 01:27:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:33,553 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:33,553 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:33,553 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-02-24 01:27:34,230 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:34,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312950570] [2022-02-24 01:27:34,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [312950570] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:34,231 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:34,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-02-24 01:27:34,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680222527] [2022-02-24 01:27:34,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:34,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-24 01:27:34,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:34,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-24 01:27:34,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=964, Unknown=0, NotChecked=0, Total=1056 [2022-02-24 01:27:34,233 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-24 01:27:37,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:37,829 INFO L93 Difference]: Finished difference Result 276 states and 338 transitions. [2022-02-24 01:27:37,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-24 01:27:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 245 [2022-02-24 01:27:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:37,831 INFO L225 Difference]: With dead ends: 276 [2022-02-24 01:27:37,832 INFO L226 Difference]: Without dead ends: 265 [2022-02-24 01:27:37,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=270, Invalid=3636, Unknown=0, NotChecked=0, Total=3906 [2022-02-24 01:27:37,833 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 291 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 7723 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 8059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 7723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:37,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 170 Invalid, 8059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 7723 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 01:27:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-24 01:27:37,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 142. [2022-02-24 01:27:37,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 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) [2022-02-24 01:27:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-02-24 01:27:37,893 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 245 [2022-02-24 01:27:37,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:37,893 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-02-24 01:27:37,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-24 01:27:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-02-24 01:27:37,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-02-24 01:27:37,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:37,895 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:37,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 01:27:37,895 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:37,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash -650456397, now seen corresponding path program 30 times [2022-02-24 01:27:37,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:37,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455273590] [2022-02-24 01:27:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:37,899 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:37,899 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:37,899 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:27:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:38,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-02-24 01:27:38,616 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:38,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455273590] [2022-02-24 01:27:38,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [455273590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:38,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:38,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 01:27:38,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812487638] [2022-02-24 01:27:38,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:38,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 01:27:38,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:38,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 01:27:38,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 01:27:38,618 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-24 01:27:42,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:42,575 INFO L93 Difference]: Finished difference Result 284 states and 348 transitions. [2022-02-24 01:27:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-24 01:27:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 253 [2022-02-24 01:27:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:42,577 INFO L225 Difference]: With dead ends: 284 [2022-02-24 01:27:42,577 INFO L226 Difference]: Without dead ends: 273 [2022-02-24 01:27:42,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=279, Invalid=3881, Unknown=0, NotChecked=0, Total=4160 [2022-02-24 01:27:42,578 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 283 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 8863 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 9193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 8863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:42,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 218 Invalid, 9193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 8863 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-24 01:27:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-24 01:27:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 146. [2022-02-24 01:27:42,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 108 states have internal predecessors, (110), 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) [2022-02-24 01:27:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2022-02-24 01:27:42,617 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 253 [2022-02-24 01:27:42,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:42,617 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2022-02-24 01:27:42,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-24 01:27:42,618 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2022-02-24 01:27:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-24 01:27:42,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:42,619 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:42,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 01:27:42,619 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:42,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash 777170958, now seen corresponding path program 31 times [2022-02-24 01:27:42,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:42,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139101958] [2022-02-24 01:27:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:42,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:42,624 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:42,624 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:42,625 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:27:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:27:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:43,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-24 01:27:43,282 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:43,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139101958] [2022-02-24 01:27:43,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2139101958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:43,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:43,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-02-24 01:27:43,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907921426] [2022-02-24 01:27:43,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:43,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-24 01:27:43,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:43,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-24 01:27:43,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2022-02-24 01:27:43,284 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-24 01:27:47,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:47,167 INFO L93 Difference]: Finished difference Result 292 states and 358 transitions. [2022-02-24 01:27:47,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-24 01:27:47,167 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 261 [2022-02-24 01:27:47,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:47,169 INFO L225 Difference]: With dead ends: 292 [2022-02-24 01:27:47,169 INFO L226 Difference]: Without dead ends: 281 [2022-02-24 01:27:47,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=4134, Unknown=0, NotChecked=0, Total=4422 [2022-02-24 01:27:47,170 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 327 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 8157 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 8533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 8157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:47,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 136 Invalid, 8533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 8157 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 01:27:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-02-24 01:27:47,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 150. [2022-02-24 01:27:47,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.018018018018018) internal successors, (113), 111 states have internal predecessors, (113), 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) [2022-02-24 01:27:47,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2022-02-24 01:27:47,219 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 261 [2022-02-24 01:27:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:47,219 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2022-02-24 01:27:47,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-24 01:27:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2022-02-24 01:27:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-24 01:27:47,221 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:47,221 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:47,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 01:27:47,221 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1150354025, now seen corresponding path program 32 times [2022-02-24 01:27:47,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:47,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885038104] [2022-02-24 01:27:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:47,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:47,226 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:47,226 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:47,226 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:27:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:27:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:27:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-02-24 01:27:47,937 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:47,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885038104] [2022-02-24 01:27:47,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1885038104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:47,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:47,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 01:27:47,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262796753] [2022-02-24 01:27:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:47,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 01:27:47,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:47,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 01:27:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 01:27:47,938 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-24 01:27:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:52,456 INFO L93 Difference]: Finished difference Result 300 states and 368 transitions. [2022-02-24 01:27:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-24 01:27:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 269 [2022-02-24 01:27:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:52,458 INFO L225 Difference]: With dead ends: 300 [2022-02-24 01:27:52,458 INFO L226 Difference]: Without dead ends: 289 [2022-02-24 01:27:52,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=297, Invalid=4395, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 01:27:52,459 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 299 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10099 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 10449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 10099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:52,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 234 Invalid, 10449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 10099 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-24 01:27:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-24 01:27:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 154. [2022-02-24 01:27:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 114 states have internal predecessors, (116), 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) [2022-02-24 01:27:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2022-02-24 01:27:52,511 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 269 [2022-02-24 01:27:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:52,511 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2022-02-24 01:27:52,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-24 01:27:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2022-02-24 01:27:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-24 01:27:52,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:52,513 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:52,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 01:27:52,513 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:52,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash -592393788, now seen corresponding path program 33 times [2022-02-24 01:27:52,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:52,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813342442] [2022-02-24 01:27:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:52,518 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:52,518 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:52,518 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:27:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:27:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:27:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:27:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:53,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2022-02-24 01:27:53,312 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:53,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813342442] [2022-02-24 01:27:53,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [813342442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:53,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:53,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-02-24 01:27:53,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759054848] [2022-02-24 01:27:53,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:53,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-24 01:27:53,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-24 01:27:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 01:27:53,314 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-24 01:27:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:27:58,203 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2022-02-24 01:27:58,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-24 01:27:58,203 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 277 [2022-02-24 01:27:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:27:58,204 INFO L225 Difference]: With dead ends: 308 [2022-02-24 01:27:58,204 INFO L226 Difference]: Without dead ends: 297 [2022-02-24 01:27:58,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=306, Invalid=4664, Unknown=0, NotChecked=0, Total=4970 [2022-02-24 01:27:58,205 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 305 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10824 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 11182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 10824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:27:58,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 247 Invalid, 11182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 10824 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 01:27:58,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-24 01:27:58,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 158. [2022-02-24 01:27:58,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.017094017094017) internal successors, (119), 117 states have internal predecessors, (119), 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) [2022-02-24 01:27:58,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 192 transitions. [2022-02-24 01:27:58,264 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 192 transitions. Word has length 277 [2022-02-24 01:27:58,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:27:58,264 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 192 transitions. [2022-02-24 01:27:58,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-24 01:27:58,265 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 192 transitions. [2022-02-24 01:27:58,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-24 01:27:58,266 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:27:58,266 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:27:58,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 01:27:58,266 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:27:58,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:27:58,267 INFO L85 PathProgramCache]: Analyzing trace with hash -865270241, now seen corresponding path program 34 times [2022-02-24 01:27:58,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:27:58,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80971292] [2022-02-24 01:27:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:27:58,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:27:58,271 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:27:58,271 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:27:58,271 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:27:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:27:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:27:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:27:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:27:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:27:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:27:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:27:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:27:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:27:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:27:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:27:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:27:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:27:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:27:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:27:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:27:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:27:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:27:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:27:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:27:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:27:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:27:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:27:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:27:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:27:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:27:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:27:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:27:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:27:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:27:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:27:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:27:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:27:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:27:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:27:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:27:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2022-02-24 01:27:59,103 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:27:59,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80971292] [2022-02-24 01:27:59,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [80971292] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:27:59,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:27:59,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 01:27:59,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803192424] [2022-02-24 01:27:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:27:59,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 01:27:59,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:27:59,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 01:27:59,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 01:27:59,105 INFO L87 Difference]: Start difference. First operand 158 states and 192 transitions. Second operand has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-24 01:28:03,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:03,854 INFO L93 Difference]: Finished difference Result 316 states and 388 transitions. [2022-02-24 01:28:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-24 01:28:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 285 [2022-02-24 01:28:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:03,856 INFO L225 Difference]: With dead ends: 316 [2022-02-24 01:28:03,856 INFO L226 Difference]: Without dead ends: 305 [2022-02-24 01:28:03,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=315, Invalid=4941, Unknown=0, NotChecked=0, Total=5256 [2022-02-24 01:28:03,857 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 353 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 9914 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 10322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 9914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:03,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 155 Invalid, 10322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 9914 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-24 01:28:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-24 01:28:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 162. [2022-02-24 01:28:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 120 states have internal predecessors, (122), 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) [2022-02-24 01:28:03,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2022-02-24 01:28:03,913 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 285 [2022-02-24 01:28:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:03,913 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2022-02-24 01:28:03,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-24 01:28:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2022-02-24 01:28:03,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-24 01:28:03,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:03,914 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:03,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 01:28:03,915 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:03,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:03,915 INFO L85 PathProgramCache]: Analyzing trace with hash -25118854, now seen corresponding path program 35 times [2022-02-24 01:28:03,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:03,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412085777] [2022-02-24 01:28:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:03,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:03,919 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:03,919 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:03,919 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2022-02-24 01:28:04,690 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:04,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412085777] [2022-02-24 01:28:04,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1412085777] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:04,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:04,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-02-24 01:28:04,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475552620] [2022-02-24 01:28:04,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:04,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-24 01:28:04,691 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:04,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-24 01:28:04,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2022-02-24 01:28:04,692 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-24 01:28:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:10,112 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2022-02-24 01:28:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-24 01:28:10,113 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 293 [2022-02-24 01:28:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:10,114 INFO L225 Difference]: With dead ends: 324 [2022-02-24 01:28:10,114 INFO L226 Difference]: Without dead ends: 313 [2022-02-24 01:28:10,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=324, Invalid=5226, Unknown=0, NotChecked=0, Total=5550 [2022-02-24 01:28:10,115 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 331 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 11779 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 12167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 11779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:10,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 238 Invalid, 12167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 11779 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 01:28:10,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-24 01:28:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 166. [2022-02-24 01:28:10,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 123 states have (on average 1.016260162601626) internal successors, (125), 123 states have internal predecessors, (125), 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) [2022-02-24 01:28:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2022-02-24 01:28:10,177 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 293 [2022-02-24 01:28:10,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:10,177 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2022-02-24 01:28:10,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-24 01:28:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2022-02-24 01:28:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-24 01:28:10,179 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:10,179 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:10,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 01:28:10,179 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:10,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:10,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1923538389, now seen corresponding path program 36 times [2022-02-24 01:28:10,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:10,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20197252] [2022-02-24 01:28:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:10,184 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:10,185 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:10,185 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:11,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2022-02-24 01:28:11,017 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:11,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20197252] [2022-02-24 01:28:11,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [20197252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:11,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:11,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 01:28:11,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869059842] [2022-02-24 01:28:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:11,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 01:28:11,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:11,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 01:28:11,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 01:28:11,019 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-24 01:28:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:16,146 INFO L93 Difference]: Finished difference Result 332 states and 408 transitions. [2022-02-24 01:28:16,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-24 01:28:16,146 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 301 [2022-02-24 01:28:16,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:16,147 INFO L225 Difference]: With dead ends: 332 [2022-02-24 01:28:16,147 INFO L226 Difference]: Without dead ends: 321 [2022-02-24 01:28:16,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=333, Invalid=5519, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 01:28:16,148 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 373 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 11068 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 11500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 11068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:16,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 161 Invalid, 11500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 11068 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 01:28:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-24 01:28:16,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 170. [2022-02-24 01:28:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.0158730158730158) internal successors, (128), 126 states have internal predecessors, (128), 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) [2022-02-24 01:28:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2022-02-24 01:28:16,220 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 301 [2022-02-24 01:28:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:16,220 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2022-02-24 01:28:16,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-24 01:28:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2022-02-24 01:28:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-02-24 01:28:16,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:16,222 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:16,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 01:28:16,222 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:16,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:16,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1033533744, now seen corresponding path program 37 times [2022-02-24 01:28:16,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:16,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714316993] [2022-02-24 01:28:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:16,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:16,227 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:16,227 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:16,228 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2022-02-24 01:28:17,129 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:17,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714316993] [2022-02-24 01:28:17,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [714316993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:17,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:17,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-02-24 01:28:17,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998083222] [2022-02-24 01:28:17,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:17,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-24 01:28:17,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-24 01:28:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1524, Unknown=0, NotChecked=0, Total=1640 [2022-02-24 01:28:17,130 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-24 01:28:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:23,204 INFO L93 Difference]: Finished difference Result 340 states and 418 transitions. [2022-02-24 01:28:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-24 01:28:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 309 [2022-02-24 01:28:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:23,206 INFO L225 Difference]: With dead ends: 340 [2022-02-24 01:28:23,206 INFO L226 Difference]: Without dead ends: 329 [2022-02-24 01:28:23,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=342, Invalid=5820, Unknown=0, NotChecked=0, Total=6162 [2022-02-24 01:28:23,208 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 331 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 13879 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 14271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 13879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:23,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 294 Invalid, 14271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 13879 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-24 01:28:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-24 01:28:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 174. [2022-02-24 01:28:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 129 states have internal predecessors, (131), 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) [2022-02-24 01:28:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2022-02-24 01:28:23,266 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 309 [2022-02-24 01:28:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:23,266 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2022-02-24 01:28:23,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-24 01:28:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2022-02-24 01:28:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-02-24 01:28:23,268 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:23,268 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:23,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 01:28:23,268 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:23,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011701, now seen corresponding path program 38 times [2022-02-24 01:28:23,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:23,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664163425] [2022-02-24 01:28:23,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:23,273 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:23,273 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:23,273 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:28:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2022-02-24 01:28:24,148 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:24,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664163425] [2022-02-24 01:28:24,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1664163425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:24,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:24,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 01:28:24,148 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008937569] [2022-02-24 01:28:24,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:24,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 01:28:24,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:24,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 01:28:24,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 01:28:24,150 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-24 01:28:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:30,389 INFO L93 Difference]: Finished difference Result 348 states and 428 transitions. [2022-02-24 01:28:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-24 01:28:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 317 [2022-02-24 01:28:30,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:30,391 INFO L225 Difference]: With dead ends: 348 [2022-02-24 01:28:30,391 INFO L226 Difference]: Without dead ends: 337 [2022-02-24 01:28:30,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=351, Invalid=6129, Unknown=0, NotChecked=0, Total=6480 [2022-02-24 01:28:30,392 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 353 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 14026 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 14442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 14026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:30,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 267 Invalid, 14442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 14026 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 01:28:30,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-24 01:28:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 178. [2022-02-24 01:28:30,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 132 states have internal predecessors, (134), 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) [2022-02-24 01:28:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2022-02-24 01:28:30,453 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 317 [2022-02-24 01:28:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:30,454 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2022-02-24 01:28:30,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-24 01:28:30,454 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2022-02-24 01:28:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-02-24 01:28:30,455 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:30,456 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:30,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 01:28:30,456 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:30,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1814688026, now seen corresponding path program 39 times [2022-02-24 01:28:30,456 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:30,456 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685791877] [2022-02-24 01:28:30,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:30,461 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:30,461 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:30,461 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:28:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:28:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2022-02-24 01:28:31,378 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:31,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685791877] [2022-02-24 01:28:31,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [685791877] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:31,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:31,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-02-24 01:28:31,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817136902] [2022-02-24 01:28:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:31,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-24 01:28:31,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:31,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-24 01:28:31,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2022-02-24 01:28:31,379 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-24 01:28:37,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:37,737 INFO L93 Difference]: Finished difference Result 356 states and 438 transitions. [2022-02-24 01:28:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-24 01:28:37,737 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 325 [2022-02-24 01:28:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:37,739 INFO L225 Difference]: With dead ends: 356 [2022-02-24 01:28:37,739 INFO L226 Difference]: Without dead ends: 345 [2022-02-24 01:28:37,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=360, Invalid=6446, Unknown=0, NotChecked=0, Total=6806 [2022-02-24 01:28:37,740 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 375 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 14165 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 14605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 14165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:37,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 240 Invalid, 14605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 14165 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-24 01:28:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-02-24 01:28:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 182. [2022-02-24 01:28:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 135 states have internal predecessors, (137), 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) [2022-02-24 01:28:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 222 transitions. [2022-02-24 01:28:37,809 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 222 transitions. Word has length 325 [2022-02-24 01:28:37,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:37,810 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 222 transitions. [2022-02-24 01:28:37,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-24 01:28:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 222 transitions. [2022-02-24 01:28:37,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-02-24 01:28:37,811 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:37,811 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:37,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 01:28:37,811 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1315698367, now seen corresponding path program 40 times [2022-02-24 01:28:37,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:37,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433016312] [2022-02-24 01:28:37,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:37,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:37,817 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:37,817 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:37,818 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:38,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:28:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:28:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:28:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2022-02-24 01:28:38,838 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:38,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433016312] [2022-02-24 01:28:38,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [433016312] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:38,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:38,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 01:28:38,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709426161] [2022-02-24 01:28:38,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:38,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 01:28:38,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:38,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 01:28:38,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1767, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 01:28:38,840 INFO L87 Difference]: Start difference. First operand 182 states and 222 transitions. Second operand has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-24 01:28:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:45,806 INFO L93 Difference]: Finished difference Result 364 states and 448 transitions. [2022-02-24 01:28:45,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-24 01:28:45,807 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 333 [2022-02-24 01:28:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:45,808 INFO L225 Difference]: With dead ends: 364 [2022-02-24 01:28:45,808 INFO L226 Difference]: Without dead ends: 353 [2022-02-24 01:28:45,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=369, Invalid=6771, Unknown=0, NotChecked=0, Total=7140 [2022-02-24 01:28:45,809 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 373 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 15388 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 15828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 15388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:45,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 273 Invalid, 15828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 15388 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-24 01:28:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-24 01:28:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 186. [2022-02-24 01:28:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 138 states have internal predecessors, (140), 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) [2022-02-24 01:28:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2022-02-24 01:28:45,875 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 333 [2022-02-24 01:28:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:45,875 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2022-02-24 01:28:45,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-24 01:28:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2022-02-24 01:28:45,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-02-24 01:28:45,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:45,877 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:45,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 01:28:45,877 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1259042972, now seen corresponding path program 41 times [2022-02-24 01:28:45,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:45,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132486220] [2022-02-24 01:28:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:45,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:45,884 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:45,884 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:45,884 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:46,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:46,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:46,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:28:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:28:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:28:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:28:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2022-02-24 01:28:46,902 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:46,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132486220] [2022-02-24 01:28:46,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [132486220] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:46,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:46,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-02-24 01:28:46,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228692585] [2022-02-24 01:28:46,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:46,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-02-24 01:28:46,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:46,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-02-24 01:28:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1852, Unknown=0, NotChecked=0, Total=1980 [2022-02-24 01:28:46,904 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-24 01:28:53,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:53,730 INFO L93 Difference]: Finished difference Result 372 states and 458 transitions. [2022-02-24 01:28:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-24 01:28:53,730 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 341 [2022-02-24 01:28:53,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:53,732 INFO L225 Difference]: With dead ends: 372 [2022-02-24 01:28:53,732 INFO L226 Difference]: Without dead ends: 361 [2022-02-24 01:28:53,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=378, Invalid=7104, Unknown=0, NotChecked=0, Total=7482 [2022-02-24 01:28:53,732 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 419 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14419 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 14907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 14419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:53,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 186 Invalid, 14907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 14419 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-24 01:28:53,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-02-24 01:28:53,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 190. [2022-02-24 01:28:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 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) [2022-02-24 01:28:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2022-02-24 01:28:53,803 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 341 [2022-02-24 01:28:53,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:53,804 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2022-02-24 01:28:53,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-24 01:28:53,804 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2022-02-24 01:28:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-02-24 01:28:53,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:53,806 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 01:28:53,806 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash -570991369, now seen corresponding path program 42 times [2022-02-24 01:28:53,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:53,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758991584] [2022-02-24 01:28:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:53,812 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:53,812 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:53,812 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:28:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:28:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:28:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:28:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:28:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:28:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:28:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:28:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:28:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:28:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:28:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:28:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:28:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:28:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:28:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:28:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:28:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:28:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:28:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:28:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:28:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:28:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:28:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:28:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:28:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:28:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:28:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:28:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:28:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:28:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:28:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:28:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:28:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:28:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:28:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:28:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:28:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:28:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:28:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:28:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:28:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:28:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-02-24 01:28:54,853 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:54,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758991584] [2022-02-24 01:28:54,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [758991584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:54,853 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:54,853 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 01:28:54,853 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469724578] [2022-02-24 01:28:54,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:54,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 01:28:54,853 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:54,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 01:28:54,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1939, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 01:28:54,854 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-24 01:29:02,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:02,306 INFO L93 Difference]: Finished difference Result 380 states and 468 transitions. [2022-02-24 01:29:02,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-24 01:29:02,306 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 349 [2022-02-24 01:29:02,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:02,308 INFO L225 Difference]: With dead ends: 380 [2022-02-24 01:29:02,308 INFO L226 Difference]: Without dead ends: 369 [2022-02-24 01:29:02,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=387, Invalid=7445, Unknown=0, NotChecked=0, Total=7832 [2022-02-24 01:29:02,309 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 403 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 16339 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 16813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 16339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:02,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 254 Invalid, 16813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 16339 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 01:29:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-02-24 01:29:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 194. [2022-02-24 01:29:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 144 states have (on average 1.0138888888888888) internal successors, (146), 144 states have internal predecessors, (146), 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) [2022-02-24 01:29:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2022-02-24 01:29:02,389 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 349 [2022-02-24 01:29:02,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:02,389 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2022-02-24 01:29:02,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-24 01:29:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2022-02-24 01:29:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-02-24 01:29:02,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:02,391 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:02,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 01:29:02,392 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash -49105326, now seen corresponding path program 43 times [2022-02-24 01:29:02,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:02,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918282730] [2022-02-24 01:29:02,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:02,404 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:02,404 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:02,404 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:03,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2022-02-24 01:29:03,501 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:03,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918282730] [2022-02-24 01:29:03,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [918282730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:03,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:03,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-02-24 01:29:03,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768434759] [2022-02-24 01:29:03,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:03,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-24 01:29:03,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:03,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-24 01:29:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2028, Unknown=0, NotChecked=0, Total=2162 [2022-02-24 01:29:03,503 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-24 01:29:11,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:11,245 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2022-02-24 01:29:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-24 01:29:11,245 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 357 [2022-02-24 01:29:11,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:11,247 INFO L225 Difference]: With dead ends: 388 [2022-02-24 01:29:11,247 INFO L226 Difference]: Without dead ends: 377 [2022-02-24 01:29:11,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=396, Invalid=7794, Unknown=0, NotChecked=0, Total=8190 [2022-02-24 01:29:11,247 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 417 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 16872 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 17362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 16872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:11,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 247 Invalid, 17362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 16872 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-24 01:29:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-02-24 01:29:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 198. [2022-02-24 01:29:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 147 states have internal predecessors, (149), 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) [2022-02-24 01:29:11,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2022-02-24 01:29:11,321 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 357 [2022-02-24 01:29:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:11,321 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2022-02-24 01:29:11,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-24 01:29:11,321 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2022-02-24 01:29:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-02-24 01:29:11,322 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:11,322 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:11,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 01:29:11,323 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:11,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:11,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1343784109, now seen corresponding path program 44 times [2022-02-24 01:29:11,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:11,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176327722] [2022-02-24 01:29:11,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:11,331 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:11,331 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:11,332 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:29:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-02-24 01:29:12,500 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:12,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176327722] [2022-02-24 01:29:12,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1176327722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:12,501 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:12,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 01:29:12,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674286535] [2022-02-24 01:29:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:12,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 01:29:12,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:12,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 01:29:12,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2119, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 01:29:12,502 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-24 01:29:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:20,695 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2022-02-24 01:29:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-24 01:29:20,695 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 365 [2022-02-24 01:29:20,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:20,697 INFO L225 Difference]: With dead ends: 396 [2022-02-24 01:29:20,697 INFO L226 Difference]: Without dead ends: 385 [2022-02-24 01:29:20,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=405, Invalid=8151, Unknown=0, NotChecked=0, Total=8556 [2022-02-24 01:29:20,697 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 425 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17710 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 18210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 17710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:20,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 255 Invalid, 18210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 17710 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-24 01:29:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-24 01:29:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 202. [2022-02-24 01:29:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 150 states have internal predecessors, (152), 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) [2022-02-24 01:29:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2022-02-24 01:29:20,776 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 365 [2022-02-24 01:29:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:20,776 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2022-02-24 01:29:20,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-24 01:29:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2022-02-24 01:29:20,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-02-24 01:29:20,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:20,778 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:20,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 01:29:20,779 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:20,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:20,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1815885816, now seen corresponding path program 45 times [2022-02-24 01:29:20,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:20,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615211083] [2022-02-24 01:29:20,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:20,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:20,788 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:20,789 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:20,789 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:29:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:29:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2022-02-24 01:29:21,927 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:21,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615211083] [2022-02-24 01:29:21,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1615211083] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:21,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:21,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-02-24 01:29:21,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133194984] [2022-02-24 01:29:21,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:21,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-02-24 01:29:21,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:21,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-02-24 01:29:21,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2212, Unknown=0, NotChecked=0, Total=2352 [2022-02-24 01:29:21,930 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-24 01:29:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:31,004 INFO L93 Difference]: Finished difference Result 404 states and 498 transitions. [2022-02-24 01:29:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-24 01:29:31,005 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 373 [2022-02-24 01:29:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:31,006 INFO L225 Difference]: With dead ends: 404 [2022-02-24 01:29:31,006 INFO L226 Difference]: Without dead ends: 393 [2022-02-24 01:29:31,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=414, Invalid=8516, Unknown=0, NotChecked=0, Total=8930 [2022-02-24 01:29:31,007 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 401 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 20184 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 20184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:31,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 343 Invalid, 20662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 20184 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 01:29:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-02-24 01:29:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 206. [2022-02-24 01:29:31,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 153 states have internal predecessors, (155), 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) [2022-02-24 01:29:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 252 transitions. [2022-02-24 01:29:31,082 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 252 transitions. Word has length 373 [2022-02-24 01:29:31,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:31,083 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 252 transitions. [2022-02-24 01:29:31,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-24 01:29:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 252 transitions. [2022-02-24 01:29:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-02-24 01:29:31,085 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:31,085 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:31,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 01:29:31,085 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:31,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1714454429, now seen corresponding path program 46 times [2022-02-24 01:29:31,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:31,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545793657] [2022-02-24 01:29:31,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:31,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:31,095 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:31,095 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:31,095 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:29:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:29:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:29:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2022-02-24 01:29:32,270 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:32,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545793657] [2022-02-24 01:29:32,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [545793657] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:32,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:32,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 01:29:32,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839097630] [2022-02-24 01:29:32,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:32,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 01:29:32,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:32,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 01:29:32,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2307, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 01:29:32,272 INFO L87 Difference]: Start difference. First operand 206 states and 252 transitions. Second operand has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-24 01:29:41,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:41,943 INFO L93 Difference]: Finished difference Result 412 states and 508 transitions. [2022-02-24 01:29:41,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-24 01:29:41,943 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 381 [2022-02-24 01:29:41,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:41,944 INFO L225 Difference]: With dead ends: 412 [2022-02-24 01:29:41,945 INFO L226 Difference]: Without dead ends: 401 [2022-02-24 01:29:41,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=423, Invalid=8889, Unknown=0, NotChecked=0, Total=9312 [2022-02-24 01:29:41,946 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 399 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 21609 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 22087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 21609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:41,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 376 Invalid, 22087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 21609 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-02-24 01:29:41,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-02-24 01:29:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 210. [2022-02-24 01:29:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.0128205128205128) internal successors, (158), 156 states have internal predecessors, (158), 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) [2022-02-24 01:29:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 257 transitions. [2022-02-24 01:29:42,078 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 257 transitions. Word has length 381 [2022-02-24 01:29:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:42,078 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 257 transitions. [2022-02-24 01:29:42,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-24 01:29:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 257 transitions. [2022-02-24 01:29:42,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-02-24 01:29:42,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:42,080 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:42,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 01:29:42,080 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:42,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:42,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1224125886, now seen corresponding path program 47 times [2022-02-24 01:29:42,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:42,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603106579] [2022-02-24 01:29:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:42,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:42,087 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:42,087 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:42,087 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:29:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:29:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:29:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:29:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2022-02-24 01:29:43,287 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:43,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603106579] [2022-02-24 01:29:43,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [603106579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:43,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:43,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2022-02-24 01:29:43,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734341041] [2022-02-24 01:29:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:43,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-24 01:29:43,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:43,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-24 01:29:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2404, Unknown=0, NotChecked=0, Total=2550 [2022-02-24 01:29:43,289 INFO L87 Difference]: Start difference. First operand 210 states and 257 transitions. Second operand has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-24 01:29:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:52,888 INFO L93 Difference]: Finished difference Result 420 states and 518 transitions. [2022-02-24 01:29:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-24 01:29:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 389 [2022-02-24 01:29:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:52,890 INFO L225 Difference]: With dead ends: 420 [2022-02-24 01:29:52,890 INFO L226 Difference]: Without dead ends: 409 [2022-02-24 01:29:52,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=432, Invalid=9270, Unknown=0, NotChecked=0, Total=9702 [2022-02-24 01:29:52,892 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 441 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 20764 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 21286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 20764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:52,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 299 Invalid, 21286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 20764 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-02-24 01:29:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-02-24 01:29:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 214. [2022-02-24 01:29:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 159 states have internal predecessors, (161), 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) [2022-02-24 01:29:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 262 transitions. [2022-02-24 01:29:52,987 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 262 transitions. Word has length 389 [2022-02-24 01:29:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:52,988 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 262 transitions. [2022-02-24 01:29:52,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-24 01:29:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 262 transitions. [2022-02-24 01:29:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-24 01:29:52,989 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:52,989 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:52,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 01:29:52,990 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1661710311, now seen corresponding path program 48 times [2022-02-24 01:29:52,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:52,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838448517] [2022-02-24 01:29:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:52,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:52,998 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:52,998 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:52,998 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:29:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:29:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:29:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:29:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:29:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:29:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:29:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:29:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:29:54,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:29:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:29:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:29:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:29:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:29:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:29:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:29:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:29:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:29:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:29:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:29:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:29:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:29:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:29:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:29:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:29:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:29:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:29:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:29:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:29:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:29:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:29:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:29:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:29:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:29:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:29:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:29:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:29:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:29:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:29:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:29:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:29:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:29:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:29:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:29:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:29:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:29:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:29:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:29:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2022-02-24 01:29:54,253 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:54,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838448517] [2022-02-24 01:29:54,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1838448517] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:54,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:54,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 01:29:54,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420438979] [2022-02-24 01:29:54,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:54,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 01:29:54,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 01:29:54,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2503, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 01:29:54,255 INFO L87 Difference]: Start difference. First operand 214 states and 262 transitions. Second operand has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-24 01:30:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:04,957 INFO L93 Difference]: Finished difference Result 428 states and 528 transitions. [2022-02-24 01:30:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-24 01:30:04,957 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 397 [2022-02-24 01:30:04,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:04,959 INFO L225 Difference]: With dead ends: 428 [2022-02-24 01:30:04,959 INFO L226 Difference]: Without dead ends: 417 [2022-02-24 01:30:04,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=441, Invalid=9659, Unknown=0, NotChecked=0, Total=10100 [2022-02-24 01:30:04,960 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 411 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 23723 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 24217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 23723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:04,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 402 Invalid, 24217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 23723 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-02-24 01:30:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-02-24 01:30:05,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 218. [2022-02-24 01:30:05,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 162 states have (on average 1.0123456790123457) internal successors, (164), 162 states have internal predecessors, (164), 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) [2022-02-24 01:30:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 267 transitions. [2022-02-24 01:30:05,049 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 267 transitions. Word has length 397 [2022-02-24 01:30:05,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:05,050 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 267 transitions. [2022-02-24 01:30:05,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-24 01:30:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 267 transitions. [2022-02-24 01:30:05,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-02-24 01:30:05,052 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:05,052 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:05,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 01:30:05,052 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:05,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:05,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1501337740, now seen corresponding path program 49 times [2022-02-24 01:30:05,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:05,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670732] [2022-02-24 01:30:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:05,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:05,058 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:05,058 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:05,058 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:30:06,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:30:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:30:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:30:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:30:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:30:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:30:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:30:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:30:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:30:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:30:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:30:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:30:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:30:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:30:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:30:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:30:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:30:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:30:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:30:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:30:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:30:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:30:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:30:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:30:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:30:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:30:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:30:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:30:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:30:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:30:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:30:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:30:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:30:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:30:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:30:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:30:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:30:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:30:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:30:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:30:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:30:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:30:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:30:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:30:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:30:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:30:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:30:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:30:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:06,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2022-02-24 01:30:06,362 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:06,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670732] [2022-02-24 01:30:06,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1670732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:06,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:06,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2022-02-24 01:30:06,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281872115] [2022-02-24 01:30:06,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:06,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-24 01:30:06,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:06,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-24 01:30:06,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2604, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 01:30:06,364 INFO L87 Difference]: Start difference. First operand 218 states and 267 transitions. Second operand has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-24 01:30:16,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:16,755 INFO L93 Difference]: Finished difference Result 436 states and 538 transitions. [2022-02-24 01:30:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-24 01:30:16,756 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 405 [2022-02-24 01:30:16,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:16,757 INFO L225 Difference]: With dead ends: 436 [2022-02-24 01:30:16,757 INFO L226 Difference]: Without dead ends: 425 [2022-02-24 01:30:16,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=450, Invalid=10056, Unknown=0, NotChecked=0, Total=10506 [2022-02-24 01:30:16,758 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 459 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 22527 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 22527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:16,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 310 Invalid, 23071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 22527 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-02-24 01:30:16,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-02-24 01:30:16,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 222. [2022-02-24 01:30:16,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 165 states have internal predecessors, (167), 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) [2022-02-24 01:30:16,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 272 transitions. [2022-02-24 01:30:16,884 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 272 transitions. Word has length 405 [2022-02-24 01:30:16,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:16,884 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 272 transitions. [2022-02-24 01:30:16,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-24 01:30:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 272 transitions. [2022-02-24 01:30:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-02-24 01:30:16,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:16,886 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:16,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 01:30:16,886 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:16,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:16,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1956711473, now seen corresponding path program 50 times [2022-02-24 01:30:16,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:16,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803164865] [2022-02-24 01:30:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:16,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:16,891 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:16,892 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:16,892 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:30:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:30:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:30:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:30:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:30:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:30:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:30:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:30:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:30:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:30:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:30:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:30:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:30:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:30:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:30:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:30:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:30:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:30:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:30:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:30:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:30:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:30:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:30:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:30:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:30:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:30:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:30:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:30:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:30:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:30:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:30:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:30:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:30:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:30:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:30:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:30:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:30:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:30:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:30:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:30:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:30:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:30:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:30:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:30:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:30:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:30:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:30:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:30:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:30:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:30:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2022-02-24 01:30:18,179 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:18,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803164865] [2022-02-24 01:30:18,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [803164865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:18,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:18,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 01:30:18,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182056935] [2022-02-24 01:30:18,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:18,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 01:30:18,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:18,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 01:30:18,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=2707, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 01:30:18,181 INFO L87 Difference]: Start difference. First operand 222 states and 272 transitions. Second operand has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-24 01:30:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:28,264 INFO L93 Difference]: Finished difference Result 444 states and 548 transitions. [2022-02-24 01:30:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-24 01:30:28,265 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 413 [2022-02-24 01:30:28,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:28,267 INFO L225 Difference]: With dead ends: 444 [2022-02-24 01:30:28,267 INFO L226 Difference]: Without dead ends: 433 [2022-02-24 01:30:28,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=459, Invalid=10461, Unknown=0, NotChecked=0, Total=10920 [2022-02-24 01:30:28,270 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 509 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21160 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 21756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 21160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:28,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 213 Invalid, 21756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 21160 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 01:30:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-02-24 01:30:28,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 226. [2022-02-24 01:30:28,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.0119047619047619) internal successors, (170), 168 states have internal predecessors, (170), 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) [2022-02-24 01:30:28,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2022-02-24 01:30:28,403 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 413 [2022-02-24 01:30:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:28,404 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2022-02-24 01:30:28,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-24 01:30:28,405 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2022-02-24 01:30:28,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-02-24 01:30:28,406 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:28,406 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:28,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 01:30:28,407 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:28,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:28,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2042497750, now seen corresponding path program 51 times [2022-02-24 01:30:28,407 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:28,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528524066] [2022-02-24 01:30:28,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:28,418 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:28,418 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:28,418 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:30:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:30:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:30:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:30:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:30:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:30:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:30:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:30:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:30:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:30:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:30:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:30:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:30:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:30:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:30:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:30:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:30:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:30:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:30:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:30:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:30:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:30:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:30:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:30:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:30:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:30:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:30:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:30:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:30:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:30:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:30:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:30:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:30:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:30:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:30:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:30:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:30:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:30:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:30:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:30:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:30:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:30:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:30:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:30:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:30:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:30:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:30:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:30:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:30:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:30:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:30:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2022-02-24 01:30:29,972 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:29,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528524066] [2022-02-24 01:30:29,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1528524066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:29,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:29,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2022-02-24 01:30:29,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323177088] [2022-02-24 01:30:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:29,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-24 01:30:29,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-24 01:30:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2812, Unknown=0, NotChecked=0, Total=2970 [2022-02-24 01:30:29,974 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-24 01:30:41,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:41,762 INFO L93 Difference]: Finished difference Result 452 states and 558 transitions. [2022-02-24 01:30:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-24 01:30:41,763 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 421 [2022-02-24 01:30:41,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:41,764 INFO L225 Difference]: With dead ends: 452 [2022-02-24 01:30:41,765 INFO L226 Difference]: Without dead ends: 441 [2022-02-24 01:30:41,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=468, Invalid=10874, Unknown=0, NotChecked=0, Total=11342 [2022-02-24 01:30:41,766 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 451 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 25831 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 26371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 25831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:41,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 386 Invalid, 26371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 25831 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-02-24 01:30:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-24 01:30:41,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 230. [2022-02-24 01:30:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 171 states have internal predecessors, (173), 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) [2022-02-24 01:30:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2022-02-24 01:30:41,896 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 421 [2022-02-24 01:30:41,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:41,897 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2022-02-24 01:30:41,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-24 01:30:41,897 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2022-02-24 01:30:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-02-24 01:30:41,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:41,899 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:41,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 01:30:41,900 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -421041275, now seen corresponding path program 52 times [2022-02-24 01:30:41,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:41,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029918909] [2022-02-24 01:30:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:41,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:41,910 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:41,910 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:41,910 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:30:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:30:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:30:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:30:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:30:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:30:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:30:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:30:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:30:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:30:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:30:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:30:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:30:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:30:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:30:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:30:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:30:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:30:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:30:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:30:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:30:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:30:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:30:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:30:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:30:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:30:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:30:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:30:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:30:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:30:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:30:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:30:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:30:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:30:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:30:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:30:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:30:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:30:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:30:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:30:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:30:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:30:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:30:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:30:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:30:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:30:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:30:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:30:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:30:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:30:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:30:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:30:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-02-24 01:30:43,348 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:43,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029918909] [2022-02-24 01:30:43,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2029918909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:43,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:43,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 01:30:43,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196633949] [2022-02-24 01:30:43,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:43,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 01:30:43,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 01:30:43,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2919, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 01:30:43,350 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-24 01:30:54,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:54,972 INFO L93 Difference]: Finished difference Result 460 states and 568 transitions. [2022-02-24 01:30:54,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-24 01:30:54,973 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 429 [2022-02-24 01:30:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:54,974 INFO L225 Difference]: With dead ends: 460 [2022-02-24 01:30:54,974 INFO L226 Difference]: Without dead ends: 449 [2022-02-24 01:30:54,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=477, Invalid=11295, Unknown=0, NotChecked=0, Total=11772 [2022-02-24 01:30:54,975 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 497 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24674 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 25262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 24674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:54,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 299 Invalid, 25262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 24674 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-02-24 01:30:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-02-24 01:30:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 234. [2022-02-24 01:30:55,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 174 states have internal predecessors, (176), 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) [2022-02-24 01:30:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 287 transitions. [2022-02-24 01:30:55,077 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 287 transitions. Word has length 429 [2022-02-24 01:30:55,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:55,077 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 287 transitions. [2022-02-24 01:30:55,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-24 01:30:55,077 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 287 transitions. [2022-02-24 01:30:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-02-24 01:30:55,079 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:55,079 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:55,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 01:30:55,079 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:55,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:55,079 INFO L85 PathProgramCache]: Analyzing trace with hash 302667488, now seen corresponding path program 53 times [2022-02-24 01:30:55,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:55,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194946870] [2022-02-24 01:30:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:55,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:55,084 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:55,084 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:55,084 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:30:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:30:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:30:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:30:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:30:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:30:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:30:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:30:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:30:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:30:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:30:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:30:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:30:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:30:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:30:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:30:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:30:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:30:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:30:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:30:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:30:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:30:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:30:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:30:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:30:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:30:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:30:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:30:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:30:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:30:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:30:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:30:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:30:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:30:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:30:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:30:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:30:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:30:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:30:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:30:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:30:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:30:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:30:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:30:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:30:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:30:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:30:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:30:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:30:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:30:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:30:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:30:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:30:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2022-02-24 01:30:56,544 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:56,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194946870] [2022-02-24 01:30:56,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [194946870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:56,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:56,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2022-02-24 01:30:56,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539921628] [2022-02-24 01:30:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:56,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-02-24 01:30:56,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:56,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-02-24 01:30:56,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3028, Unknown=0, NotChecked=0, Total=3192 [2022-02-24 01:30:56,546 INFO L87 Difference]: Start difference. First operand 234 states and 287 transitions. Second operand has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-24 01:31:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:07,761 INFO L93 Difference]: Finished difference Result 468 states and 578 transitions. [2022-02-24 01:31:07,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-24 01:31:07,762 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 437 [2022-02-24 01:31:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:07,763 INFO L225 Difference]: With dead ends: 468 [2022-02-24 01:31:07,763 INFO L226 Difference]: Without dead ends: 457 [2022-02-24 01:31:07,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=486, Invalid=11724, Unknown=0, NotChecked=0, Total=12210 [2022-02-24 01:31:07,764 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 549 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 23110 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 23752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 23110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:07,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 197 Invalid, 23752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 23110 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-02-24 01:31:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-02-24 01:31:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 238. [2022-02-24 01:31:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 177 states have internal predecessors, (179), 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) [2022-02-24 01:31:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2022-02-24 01:31:07,921 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 437 [2022-02-24 01:31:07,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:07,922 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2022-02-24 01:31:07,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-24 01:31:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2022-02-24 01:31:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-02-24 01:31:07,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:07,924 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:07,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 01:31:07,924 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:07,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2124040389, now seen corresponding path program 54 times [2022-02-24 01:31:07,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:07,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351540098] [2022-02-24 01:31:07,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:07,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:07,932 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:07,932 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:07,932 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:31:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:31:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:31:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:31:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:31:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:31:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:31:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:31:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:31:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:31:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:31:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:31:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:31:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:31:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:31:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:31:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:31:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:31:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:31:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:31:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:31:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:31:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:31:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:31:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:31:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:31:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:31:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:31:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:31:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:31:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:31:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:31:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:31:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:31:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:31:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:31:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:31:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:31:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:31:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:31:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:31:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:31:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:31:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:31:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:31:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:31:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:31:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:31:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:31:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:31:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:31:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:31:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:31:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:31:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2022-02-24 01:31:09,474 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:09,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351540098] [2022-02-24 01:31:09,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [351540098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:09,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:09,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 01:31:09,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302185851] [2022-02-24 01:31:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:09,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 01:31:09,475 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:09,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 01:31:09,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3139, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 01:31:09,476 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 01:31:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:23,070 INFO L93 Difference]: Finished difference Result 476 states and 588 transitions. [2022-02-24 01:31:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-24 01:31:23,070 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 445 [2022-02-24 01:31:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:23,072 INFO L225 Difference]: With dead ends: 476 [2022-02-24 01:31:23,072 INFO L226 Difference]: Without dead ends: 465 [2022-02-24 01:31:23,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=495, Invalid=12161, Unknown=0, NotChecked=0, Total=12656 [2022-02-24 01:31:23,073 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 465 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 29570 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 30130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 29570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:23,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 435 Invalid, 30130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 29570 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-02-24 01:31:23,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-02-24 01:31:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 242. [2022-02-24 01:31:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 180 states have (on average 1.011111111111111) internal successors, (182), 180 states have internal predecessors, (182), 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) [2022-02-24 01:31:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 297 transitions. [2022-02-24 01:31:23,233 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 297 transitions. Word has length 445 [2022-02-24 01:31:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:23,233 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 297 transitions. [2022-02-24 01:31:23,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 01:31:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 297 transitions. [2022-02-24 01:31:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2022-02-24 01:31:23,236 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:23,236 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:23,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 01:31:23,236 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:23,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1011577706, now seen corresponding path program 55 times [2022-02-24 01:31:23,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:23,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728824454] [2022-02-24 01:31:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:23,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:23,243 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:23,243 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:23,243 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:31:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:31:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:31:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:31:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:31:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:31:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:31:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:31:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:31:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:31:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:31:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:31:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:31:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:31:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:31:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:31:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:31:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:31:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:31:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:31:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:31:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:31:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:31:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:31:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:31:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:31:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:31:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:31:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:31:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:31:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:31:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:31:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:31:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:31:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:31:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:31:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:31:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:31:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:31:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:31:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:31:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:31:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:31:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:31:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:31:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:31:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:31:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:31:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:31:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:31:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:31:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:31:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:31:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:31:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:31:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2022-02-24 01:31:24,824 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:24,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728824454] [2022-02-24 01:31:24,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1728824454] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:24,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:24,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2022-02-24 01:31:24,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192628434] [2022-02-24 01:31:24,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:24,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-02-24 01:31:24,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:24,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-02-24 01:31:24,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3252, Unknown=0, NotChecked=0, Total=3422 [2022-02-24 01:31:24,825 INFO L87 Difference]: Start difference. First operand 242 states and 297 transitions. Second operand has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 01:31:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:38,849 INFO L93 Difference]: Finished difference Result 484 states and 598 transitions. [2022-02-24 01:31:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-24 01:31:38,850 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 453 [2022-02-24 01:31:38,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:38,852 INFO L225 Difference]: With dead ends: 484 [2022-02-24 01:31:38,852 INFO L226 Difference]: Without dead ends: 473 [2022-02-24 01:31:38,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=504, Invalid=12606, Unknown=0, NotChecked=0, Total=13110 [2022-02-24 01:31:38,853 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 473 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 30668 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 31238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 30668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:38,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 443 Invalid, 31238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 30668 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-02-24 01:31:38,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-24 01:31:38,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 246. [2022-02-24 01:31:38,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 183 states have (on average 1.010928961748634) internal successors, (185), 183 states have internal predecessors, (185), 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) [2022-02-24 01:31:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2022-02-24 01:31:38,972 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 453 [2022-02-24 01:31:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:38,972 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2022-02-24 01:31:38,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 01:31:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2022-02-24 01:31:38,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-02-24 01:31:38,973 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:38,973 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:38,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 01:31:38,974 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:38,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:38,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2092029681, now seen corresponding path program 56 times [2022-02-24 01:31:38,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:38,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471014480] [2022-02-24 01:31:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:38,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:38,979 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:38,979 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:38,979 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:31:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:31:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:31:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:31:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:31:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:31:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:31:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:31:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:31:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:31:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:31:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:31:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:31:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:31:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:31:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:31:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:31:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:31:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:31:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:31:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:31:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:31:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:31:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:31:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:31:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:31:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:31:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:31:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:31:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:31:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:31:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:31:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:31:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:31:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:31:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:31:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:31:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:31:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:31:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:31:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:31:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:31:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:31:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:31:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:31:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:31:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:31:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:31:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:31:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:31:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:31:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:31:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:31:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:31:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:31:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:31:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-02-24 01:31:40,620 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:40,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471014480] [2022-02-24 01:31:40,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [471014480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:40,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:40,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 01:31:40,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64384038] [2022-02-24 01:31:40,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:40,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 01:31:40,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 01:31:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3367, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 01:31:40,621 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 01:31:53,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:53,468 INFO L93 Difference]: Finished difference Result 492 states and 608 transitions. [2022-02-24 01:31:53,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-24 01:31:53,468 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 461 [2022-02-24 01:31:53,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:53,470 INFO L225 Difference]: With dead ends: 492 [2022-02-24 01:31:53,470 INFO L226 Difference]: Without dead ends: 481 [2022-02-24 01:31:53,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1597 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=513, Invalid=13059, Unknown=0, NotChecked=0, Total=13572 [2022-02-24 01:31:53,471 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 569 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26374 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 27042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 26374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:53,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 231 Invalid, 27042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 26374 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-02-24 01:31:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-24 01:31:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 250. [2022-02-24 01:31:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.010752688172043) internal successors, (188), 186 states have internal predecessors, (188), 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) [2022-02-24 01:31:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 307 transitions. [2022-02-24 01:31:53,593 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 307 transitions. Word has length 461 [2022-02-24 01:31:53,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:53,593 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 307 transitions. [2022-02-24 01:31:53,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 01:31:53,593 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 307 transitions. [2022-02-24 01:31:53,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-02-24 01:31:53,595 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:53,595 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:53,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 01:31:53,595 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:53,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1696110156, now seen corresponding path program 57 times [2022-02-24 01:31:53,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:53,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561746841] [2022-02-24 01:31:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:53,601 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:53,601 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:53,601 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:31:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:31:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:31:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:31:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:31:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:31:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:31:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:31:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:31:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:31:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:31:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:31:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:31:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:31:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:31:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:31:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:31:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:31:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:31:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:31:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:31:55,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:31:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:31:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:31:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:31:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:31:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:31:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:31:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:31:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:31:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:31:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:31:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:31:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:31:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:31:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:31:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:31:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:31:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:31:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:31:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:31:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:31:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:31:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:31:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:31:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:31:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:31:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:31:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:31:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:31:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:31:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:31:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:31:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:31:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:31:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:31:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:31:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2022-02-24 01:31:55,290 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:55,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561746841] [2022-02-24 01:31:55,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [561746841] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:55,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:55,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2022-02-24 01:31:55,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371885587] [2022-02-24 01:31:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:55,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-24 01:31:55,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:55,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-24 01:31:55,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3484, Unknown=0, NotChecked=0, Total=3660 [2022-02-24 01:31:55,292 INFO L87 Difference]: Start difference. First operand 250 states and 307 transitions. Second operand has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 01:32:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:08,711 INFO L93 Difference]: Finished difference Result 500 states and 618 transitions. [2022-02-24 01:32:08,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-24 01:32:08,711 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 469 [2022-02-24 01:32:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:08,713 INFO L225 Difference]: With dead ends: 500 [2022-02-24 01:32:08,713 INFO L226 Difference]: Without dead ends: 489 [2022-02-24 01:32:08,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=522, Invalid=13520, Unknown=0, NotChecked=0, Total=14042 [2022-02-24 01:32:08,714 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 585 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26924 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 27610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 26924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:08,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 219 Invalid, 27610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 26924 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-02-24 01:32:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-02-24 01:32:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 254. [2022-02-24 01:32:08,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 189 states have internal predecessors, (191), 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) [2022-02-24 01:32:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 312 transitions. [2022-02-24 01:32:08,843 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 312 transitions. Word has length 469 [2022-02-24 01:32:08,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:08,843 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 312 transitions. [2022-02-24 01:32:08,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 01:32:08,843 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 312 transitions. [2022-02-24 01:32:08,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-02-24 01:32:08,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:08,846 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:08,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 01:32:08,846 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:08,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:08,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1252248231, now seen corresponding path program 58 times [2022-02-24 01:32:08,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:08,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245660840] [2022-02-24 01:32:08,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:08,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:08,852 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:08,852 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:08,852 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:32:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:32:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:32:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:32:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:32:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:32:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:32:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:32:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:32:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:32:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:32:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:32:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:32:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:32:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:32:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:32:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:32:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:32:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:32:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:32:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:32:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:32:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:32:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:32:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:32:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:32:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:32:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:32:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:32:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:32:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:32:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:32:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:32:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:32:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:32:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:32:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:32:10,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:32:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:32:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:32:10,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:32:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:32:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:32:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:32:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:32:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:32:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:32:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:32:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:32:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:32:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:32:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:32:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:32:10,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:32:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:32:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:32:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:32:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:32:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:10,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2022-02-24 01:32:10,575 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:10,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245660840] [2022-02-24 01:32:10,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [245660840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:10,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:10,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 01:32:10,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955333006] [2022-02-24 01:32:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:10,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 01:32:10,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 01:32:10,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=3603, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 01:32:10,577 INFO L87 Difference]: Start difference. First operand 254 states and 312 transitions. Second operand has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 01:32:25,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:25,727 INFO L93 Difference]: Finished difference Result 508 states and 628 transitions. [2022-02-24 01:32:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-24 01:32:25,728 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 477 [2022-02-24 01:32:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:25,729 INFO L225 Difference]: With dead ends: 508 [2022-02-24 01:32:25,729 INFO L226 Difference]: Without dead ends: 497 [2022-02-24 01:32:25,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=531, Invalid=13989, Unknown=0, NotChecked=0, Total=14520 [2022-02-24 01:32:25,730 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 521 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 32558 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 33182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 32558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:25,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 407 Invalid, 33182 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [624 Valid, 32558 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-02-24 01:32:25,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-02-24 01:32:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 258. [2022-02-24 01:32:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 192 states have internal predecessors, (194), 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) [2022-02-24 01:32:25,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 317 transitions. [2022-02-24 01:32:25,855 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 317 transitions. Word has length 477 [2022-02-24 01:32:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:25,856 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 317 transitions. [2022-02-24 01:32:25,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 01:32:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 317 transitions. [2022-02-24 01:32:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-24 01:32:25,858 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:25,858 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:25,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 01:32:25,859 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:25,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 269382658, now seen corresponding path program 59 times [2022-02-24 01:32:25,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:25,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90169240] [2022-02-24 01:32:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:25,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:25,864 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:25,864 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:25,864 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:32:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:32:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:32:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:32:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:32:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:32:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:32:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:32:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:32:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:32:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:32:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:32:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:32:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:32:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:32:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:32:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:32:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:32:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:32:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:32:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:32:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:32:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:32:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:32:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:32:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:32:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:32:27,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:32:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:32:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:32:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:32:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:32:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:32:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:32:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:32:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:32:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:32:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:32:27,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:32:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:32:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:32:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:32:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:32:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:32:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:32:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:32:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:32:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:32:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:32:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:32:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:32:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:32:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:32:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:32:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:32:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:32:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:32:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:32:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:32:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-02-24 01:32:27,684 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:27,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90169240] [2022-02-24 01:32:27,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [90169240] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:27,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:27,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2022-02-24 01:32:27,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300761781] [2022-02-24 01:32:27,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:27,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-02-24 01:32:27,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:27,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-02-24 01:32:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=3724, Unknown=0, NotChecked=0, Total=3906 [2022-02-24 01:32:27,686 INFO L87 Difference]: Start difference. First operand 258 states and 317 transitions. Second operand has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 01:32:43,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:43,119 INFO L93 Difference]: Finished difference Result 516 states and 638 transitions. [2022-02-24 01:32:43,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-24 01:32:43,119 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 485 [2022-02-24 01:32:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:43,121 INFO L225 Difference]: With dead ends: 516 [2022-02-24 01:32:43,122 INFO L226 Difference]: Without dead ends: 505 [2022-02-24 01:32:43,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1771 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=540, Invalid=14466, Unknown=0, NotChecked=0, Total=15006 [2022-02-24 01:32:43,123 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 549 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 32422 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 33076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 32422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:43,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 365 Invalid, 33076 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [654 Valid, 32422 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-02-24 01:32:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-24 01:32:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 262. [2022-02-24 01:32:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 195 states have internal predecessors, (197), 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) [2022-02-24 01:32:43,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 322 transitions. [2022-02-24 01:32:43,263 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 322 transitions. Word has length 485 [2022-02-24 01:32:43,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:43,264 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 322 transitions. [2022-02-24 01:32:43,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 01:32:43,264 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 322 transitions. [2022-02-24 01:32:43,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-02-24 01:32:43,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:43,266 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:43,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 01:32:43,266 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:43,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1391226275, now seen corresponding path program 60 times [2022-02-24 01:32:43,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:43,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636122525] [2022-02-24 01:32:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:43,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:43,270 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:43,270 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:43,270 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:32:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:32:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:32:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:32:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:32:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:32:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:32:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:32:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:32:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:32:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:32:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:32:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:32:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:32:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:32:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:32:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:32:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:32:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:32:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:32:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:32:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:32:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:32:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:32:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:32:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:32:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:32:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:32:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:32:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:32:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:32:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:32:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:32:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:32:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:32:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:32:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:32:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:32:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:32:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:32:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:32:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:32:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:32:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:32:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:32:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:32:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:32:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:32:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:32:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:32:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:32:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:32:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:32:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:32:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:32:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:32:45,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:32:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:32:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:32:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:32:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2022-02-24 01:32:45,049 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:45,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636122525] [2022-02-24 01:32:45,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1636122525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:45,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:45,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 01:32:45,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827174212] [2022-02-24 01:32:45,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:45,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 01:32:45,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 01:32:45,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=3847, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 01:32:45,051 INFO L87 Difference]: Start difference. First operand 262 states and 322 transitions. Second operand has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 01:32:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:59,727 INFO L93 Difference]: Finished difference Result 524 states and 648 transitions. [2022-02-24 01:32:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-24 01:32:59,728 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 493 [2022-02-24 01:32:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:59,730 INFO L225 Difference]: With dead ends: 524 [2022-02-24 01:32:59,730 INFO L226 Difference]: Without dead ends: 513 [2022-02-24 01:32:59,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1831 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=549, Invalid=14951, Unknown=0, NotChecked=0, Total=15500 [2022-02-24 01:32:59,731 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 615 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 29777 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 30499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 29777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:59,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 228 Invalid, 30499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 29777 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-24 01:32:59,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-24 01:32:59,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 266. [2022-02-24 01:32:59,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.0101010101010102) internal successors, (200), 198 states have internal predecessors, (200), 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) [2022-02-24 01:32:59,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 327 transitions. [2022-02-24 01:32:59,920 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 327 transitions. Word has length 493 [2022-02-24 01:32:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:59,920 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 327 transitions. [2022-02-24 01:32:59,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 01:32:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 327 transitions. [2022-02-24 01:32:59,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-02-24 01:32:59,923 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:59,923 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:59,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 01:32:59,923 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:59,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash 778970552, now seen corresponding path program 61 times [2022-02-24 01:32:59,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:59,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422100348] [2022-02-24 01:32:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:59,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:59,928 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:59,928 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:59,928 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:33:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:33:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:33:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:33:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:33:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:33:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:33:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:33:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:33:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:33:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:33:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:33:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:33:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:33:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:33:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:33:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:33:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:33:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:33:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:33:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:33:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:33:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:33:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:33:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:33:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:33:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:33:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:33:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:33:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:33:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:33:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:33:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:33:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:33:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:33:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:33:01,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:33:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:33:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:33:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:33:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:33:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:33:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:33:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:33:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:33:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:33:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:33:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:33:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:33:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:33:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:33:01,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:33:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:33:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:33:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:33:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:33:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:33:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:33:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:33:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:33:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:33:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2022-02-24 01:33:01,922 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:01,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422100348] [2022-02-24 01:33:01,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1422100348] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:01,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:01,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2022-02-24 01:33:01,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704122777] [2022-02-24 01:33:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:01,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-02-24 01:33:01,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-02-24 01:33:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3972, Unknown=0, NotChecked=0, Total=4160 [2022-02-24 01:33:01,923 INFO L87 Difference]: Start difference. First operand 266 states and 327 transitions. Second operand has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 01:33:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:18,082 INFO L93 Difference]: Finished difference Result 532 states and 658 transitions. [2022-02-24 01:33:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-24 01:33:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 501 [2022-02-24 01:33:18,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:18,085 INFO L225 Difference]: With dead ends: 532 [2022-02-24 01:33:18,085 INFO L226 Difference]: Without dead ends: 521 [2022-02-24 01:33:18,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=558, Invalid=15444, Unknown=0, NotChecked=0, Total=16002 [2022-02-24 01:33:18,086 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 581 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 33686 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 34376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 33686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:18,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 341 Invalid, 34376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [690 Valid, 33686 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-02-24 01:33:18,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-24 01:33:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 270. [2022-02-24 01:33:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 201 states have (on average 1.0099502487562189) internal successors, (203), 201 states have internal predecessors, (203), 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) [2022-02-24 01:33:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 332 transitions. [2022-02-24 01:33:18,246 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 332 transitions. Word has length 501 [2022-02-24 01:33:18,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:18,246 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 332 transitions. [2022-02-24 01:33:18,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 01:33:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 332 transitions. [2022-02-24 01:33:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-02-24 01:33:18,249 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:18,249 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:18,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 01:33:18,250 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:18,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1244058093, now seen corresponding path program 62 times [2022-02-24 01:33:18,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:18,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571468302] [2022-02-24 01:33:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:18,256 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:18,256 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:18,256 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:33:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:33:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:33:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:33:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:33:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:33:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:33:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:33:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:33:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:33:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:33:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:33:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:33:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:33:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:33:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:33:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:33:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:33:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:33:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:33:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:33:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:33:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:33:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:33:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:33:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:33:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:33:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:33:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:33:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:33:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:33:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:33:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:33:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:33:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:33:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:33:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:33:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:33:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:33:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:33:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:33:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:33:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:33:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:33:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:33:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:33:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:33:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:33:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:33:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:33:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:33:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:33:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:33:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:33:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:33:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:33:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:33:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:33:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:33:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:33:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:33:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:33:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2022-02-24 01:33:20,119 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:20,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571468302] [2022-02-24 01:33:20,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1571468302] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:20,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:20,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 01:33:20,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713811026] [2022-02-24 01:33:20,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:20,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 01:33:20,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:20,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 01:33:20,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=4099, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 01:33:20,121 INFO L87 Difference]: Start difference. First operand 270 states and 332 transitions. Second operand has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 01:33:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:36,475 INFO L93 Difference]: Finished difference Result 540 states and 668 transitions. [2022-02-24 01:33:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-24 01:33:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 509 [2022-02-24 01:33:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:36,478 INFO L225 Difference]: With dead ends: 540 [2022-02-24 01:33:36,478 INFO L226 Difference]: Without dead ends: 529 [2022-02-24 01:33:36,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=567, Invalid=15945, Unknown=0, NotChecked=0, Total=16512 [2022-02-24 01:33:36,479 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 607 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 33649 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 34367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 33649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:36,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 304 Invalid, 34367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 33649 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-02-24 01:33:36,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-24 01:33:36,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 274. [2022-02-24 01:33:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 204 states have (on average 1.0098039215686274) internal successors, (206), 204 states have internal predecessors, (206), 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) [2022-02-24 01:33:36,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 337 transitions. [2022-02-24 01:33:36,680 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 337 transitions. Word has length 509 [2022-02-24 01:33:36,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:36,681 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 337 transitions. [2022-02-24 01:33:36,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 01:33:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 337 transitions. [2022-02-24 01:33:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-02-24 01:33:36,683 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:36,684 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:36,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 01:33:36,684 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 2047847278, now seen corresponding path program 63 times [2022-02-24 01:33:36,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:36,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129754672] [2022-02-24 01:33:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:36,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:36,691 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:36,691 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:36,691 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:33:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:33:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:33:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:33:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:33:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:33:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:33:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:33:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:33:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:33:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:33:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:33:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:33:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:33:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:33:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:33:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:33:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:33:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:33:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:33:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:33:38,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:33:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:33:38,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:33:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:33:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:33:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:33:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:33:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:33:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:33:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:33:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:33:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:33:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:33:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:33:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:33:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:33:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:33:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:33:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:33:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:33:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:33:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:33:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:33:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:33:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:33:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:33:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:33:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:33:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:33:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:33:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:33:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:33:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:33:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:33:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:33:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:33:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:33:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:33:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:33:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:33:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:33:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:33:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2022-02-24 01:33:38,654 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:38,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129754672] [2022-02-24 01:33:38,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2129754672] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:38,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:38,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2022-02-24 01:33:38,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032109536] [2022-02-24 01:33:38,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:38,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-24 01:33:38,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:38,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-24 01:33:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=4228, Unknown=0, NotChecked=0, Total=4422 [2022-02-24 01:33:38,656 INFO L87 Difference]: Start difference. First operand 274 states and 337 transitions. Second operand has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 01:33:56,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:56,405 INFO L93 Difference]: Finished difference Result 548 states and 678 transitions. [2022-02-24 01:33:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-24 01:33:56,406 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 517 [2022-02-24 01:33:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:56,408 INFO L225 Difference]: With dead ends: 548 [2022-02-24 01:33:56,408 INFO L226 Difference]: Without dead ends: 537 [2022-02-24 01:33:56,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2017 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=576, Invalid=16454, Unknown=0, NotChecked=0, Total=17030 [2022-02-24 01:33:56,410 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 585 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 36884 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 37582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 36884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:56,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 387 Invalid, 37582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 36884 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-02-24 01:33:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-02-24 01:33:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 278. [2022-02-24 01:33:56,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 207 states have internal predecessors, (209), 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) [2022-02-24 01:33:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 342 transitions. [2022-02-24 01:33:56,621 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 342 transitions. Word has length 517 [2022-02-24 01:33:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:56,621 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 342 transitions. [2022-02-24 01:33:56,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 01:33:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 342 transitions. [2022-02-24 01:33:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-24 01:33:56,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:56,624 INFO L514 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:56,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 01:33:56,624 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -959668791, now seen corresponding path program 64 times [2022-02-24 01:33:56,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:56,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933278888] [2022-02-24 01:33:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:56,633 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:56,633 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:56,633 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:33:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:33:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:33:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:33:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:33:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:33:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:33:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:33:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:33:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:33:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:33:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:33:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:33:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:33:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:33:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:33:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:33:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:33:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:33:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:33:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:33:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:33:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:33:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:33:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:33:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:33:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:33:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:33:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:33:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:33:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:33:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:33:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:33:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:33:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:33:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:33:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:33:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:33:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:33:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:33:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:33:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:33:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:33:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:33:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:33:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:33:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:33:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:33:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:33:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:33:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:33:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:33:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:33:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:33:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:33:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:33:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:33:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:33:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:33:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:33:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:33:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:33:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:33:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:33:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2022-02-24 01:33:58,664 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:58,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933278888] [2022-02-24 01:33:58,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1933278888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:58,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:58,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 01:33:58,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109939720] [2022-02-24 01:33:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:58,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 01:33:58,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:58,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 01:33:58,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=4359, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 01:33:58,666 INFO L87 Difference]: Start difference. First operand 278 states and 342 transitions. Second operand has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-24 01:34:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:15,768 INFO L93 Difference]: Finished difference Result 556 states and 688 transitions. [2022-02-24 01:34:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-24 01:34:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 525 [2022-02-24 01:34:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:15,770 INFO L225 Difference]: With dead ends: 556 [2022-02-24 01:34:15,770 INFO L226 Difference]: Without dead ends: 545 [2022-02-24 01:34:15,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=585, Invalid=16971, Unknown=0, NotChecked=0, Total=17556 [2022-02-24 01:34:15,772 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 655 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33805 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 34575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 770 IncrementalHoareTripleChecker+Valid, 33805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:15,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 240 Invalid, 34575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [770 Valid, 33805 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-02-24 01:34:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-02-24 01:34:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 282. [2022-02-24 01:34:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 210 states have (on average 1.0095238095238095) internal successors, (212), 210 states have internal predecessors, (212), 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) [2022-02-24 01:34:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2022-02-24 01:34:15,921 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 525 [2022-02-24 01:34:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:15,922 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2022-02-24 01:34:15,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-24 01:34:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2022-02-24 01:34:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-02-24 01:34:15,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:15,924 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:15,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 01:34:15,924 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash -53803740, now seen corresponding path program 65 times [2022-02-24 01:34:15,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:15,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814369332] [2022-02-24 01:34:15,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:15,930 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:15,930 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:15,930 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:34:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:34:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:34:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:34:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:34:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:34:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:34:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:34:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:34:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:34:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:34:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:34:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:34:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:34:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:34:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:34:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:34:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:34:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:34:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:34:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:34:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:34:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:34:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:34:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:34:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:34:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:34:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:34:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:34:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:34:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:34:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:34:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:34:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:34:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:34:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:34:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:34:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:34:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:34:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:34:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:34:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:34:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:34:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:34:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:34:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:34:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:34:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:34:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:34:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:34:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:34:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:34:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:34:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:34:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:34:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:34:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:34:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:34:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:34:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:34:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:34:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:34:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:34:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:34:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:34:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2022-02-24 01:34:17,958 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:17,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814369332] [2022-02-24 01:34:17,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [814369332] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:17,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:17,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2022-02-24 01:34:17,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632444161] [2022-02-24 01:34:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:17,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-02-24 01:34:17,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-02-24 01:34:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=4492, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 01:34:17,960 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-24 01:34:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:37,772 INFO L93 Difference]: Finished difference Result 564 states and 698 transitions. [2022-02-24 01:34:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-24 01:34:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 533 [2022-02-24 01:34:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:37,774 INFO L225 Difference]: With dead ends: 564 [2022-02-24 01:34:37,774 INFO L226 Difference]: Without dead ends: 553 [2022-02-24 01:34:37,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=594, Invalid=17496, Unknown=0, NotChecked=0, Total=18090 [2022-02-24 01:34:37,775 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 571 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 41479 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 42167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 41479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:37,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 478 Invalid, 42167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [688 Valid, 41479 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-02-24 01:34:37,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-24 01:34:37,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 286. [2022-02-24 01:34:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 213 states have internal predecessors, (215), 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) [2022-02-24 01:34:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 352 transitions. [2022-02-24 01:34:37,924 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 352 transitions. Word has length 533 [2022-02-24 01:34:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:37,925 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 352 transitions. [2022-02-24 01:34:37,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-24 01:34:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 352 transitions. [2022-02-24 01:34:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-02-24 01:34:37,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:37,927 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:37,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 01:34:37,927 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:37,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1849302657, now seen corresponding path program 66 times [2022-02-24 01:34:37,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:37,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365300075] [2022-02-24 01:34:37,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:37,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:37,935 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:37,935 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:37,935 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:34:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:34:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:34:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:34:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:34:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:34:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:34:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:34:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:34:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:34:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:34:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:34:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:34:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:34:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:34:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:34:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:34:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:34:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:34:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:34:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:34:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:34:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:34:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:34:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:34:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:34:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:34:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:34:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:34:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:34:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:34:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:34:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:34:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:34:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:34:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:34:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:34:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:34:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:34:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:34:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:34:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:34:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:34:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:34:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:34:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:34:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:34:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:34:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:34:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:34:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:34:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:34:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:34:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:34:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:34:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:34:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:34:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:34:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:34:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:34:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:34:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:34:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:34:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:34:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:34:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:34:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2022-02-24 01:34:39,980 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:39,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365300075] [2022-02-24 01:34:39,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1365300075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:39,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:39,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 01:34:39,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773594060] [2022-02-24 01:34:39,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:39,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 01:34:39,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:39,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 01:34:39,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=4627, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 01:34:39,982 INFO L87 Difference]: Start difference. First operand 286 states and 352 transitions. Second operand has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-24 01:34:59,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:59,857 INFO L93 Difference]: Finished difference Result 572 states and 708 transitions. [2022-02-24 01:34:59,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-24 01:34:59,857 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Word has length 541 [2022-02-24 01:34:59,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:59,860 INFO L225 Difference]: With dead ends: 572 [2022-02-24 01:34:59,860 INFO L226 Difference]: Without dead ends: 561 [2022-02-24 01:34:59,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2212 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=603, Invalid=18029, Unknown=0, NotChecked=0, Total=18632 [2022-02-24 01:34:59,861 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 603 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 41063 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 41785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 41063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:59,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 426 Invalid, 41785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [722 Valid, 41063 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2022-02-24 01:34:59,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-02-24 01:35:00,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 290. [2022-02-24 01:35:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 216 states have internal predecessors, (218), 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) [2022-02-24 01:35:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 357 transitions. [2022-02-24 01:35:00,032 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 357 transitions. Word has length 541 [2022-02-24 01:35:00,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:00,032 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 357 transitions. [2022-02-24 01:35:00,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-24 01:35:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 357 transitions. [2022-02-24 01:35:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-02-24 01:35:00,034 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:00,034 INFO L514 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:00,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 01:35:00,034 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:00,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:00,034 INFO L85 PathProgramCache]: Analyzing trace with hash 276312794, now seen corresponding path program 67 times [2022-02-24 01:35:00,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:00,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170184467] [2022-02-24 01:35:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:00,039 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:00,039 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:00,039 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:35:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:35:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:35:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:35:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:35:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:35:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:35:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:35:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:35:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:35:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:35:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:35:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:35:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:35:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:35:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:35:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:35:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:35:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:35:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:35:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:35:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:35:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:35:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:35:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:35:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:35:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:35:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:35:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:35:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:35:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:35:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:35:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:35:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:35:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:35:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:35:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:35:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:35:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:35:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:35:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:35:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:35:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:35:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:35:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:35:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:35:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:35:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:35:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:35:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:35:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:35:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:35:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:35:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:35:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:35:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:35:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:35:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:35:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:35:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:35:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:35:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:35:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:35:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:35:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:35:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:35:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:35:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2022-02-24 01:35:02,137 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:02,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170184467] [2022-02-24 01:35:02,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [170184467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:02,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:02,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-02-24 01:35:02,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436350312] [2022-02-24 01:35:02,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:02,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-24 01:35:02,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:02,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-24 01:35:02,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=4764, Unknown=0, NotChecked=0, Total=4970 [2022-02-24 01:35:02,139 INFO L87 Difference]: Start difference. First operand 290 states and 357 transitions. Second operand has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-24 01:35:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:23,906 INFO L93 Difference]: Finished difference Result 580 states and 718 transitions. [2022-02-24 01:35:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-24 01:35:23,907 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 549 [2022-02-24 01:35:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:23,909 INFO L225 Difference]: With dead ends: 580 [2022-02-24 01:35:23,909 INFO L226 Difference]: Without dead ends: 569 [2022-02-24 01:35:23,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2279 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=612, Invalid=18570, Unknown=0, NotChecked=0, Total=19182 [2022-02-24 01:35:23,910 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 45984 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 46666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 45984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:23,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 559 Invalid, 46666 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [682 Valid, 45984 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-02-24 01:35:23,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-02-24 01:35:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 294. [2022-02-24 01:35:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 219 states have internal predecessors, (221), 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) [2022-02-24 01:35:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2022-02-24 01:35:24,076 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 549 [2022-02-24 01:35:24,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:24,076 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2022-02-24 01:35:24,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-24 01:35:24,076 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2022-02-24 01:35:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-24 01:35:24,079 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:24,079 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:24,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 01:35:24,079 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 412940597, now seen corresponding path program 68 times [2022-02-24 01:35:24,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:24,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532919393] [2022-02-24 01:35:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:24,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:24,086 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:24,086 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:24,086 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:35:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:35:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:35:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:35:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:35:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:35:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:35:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:35:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:35:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:35:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:35:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:35:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:35:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:35:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:35:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:35:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:35:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:35:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:35:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:35:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:35:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:35:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:35:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:35:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:35:26,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:35:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:35:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:35:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:35:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:35:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:35:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:35:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:35:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:35:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:35:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:35:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:35:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:35:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:35:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:35:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:35:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:35:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:35:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:35:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:35:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:35:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:35:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:35:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:35:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:35:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:35:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:35:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:35:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:35:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:35:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:35:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:35:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:35:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:35:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:35:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:35:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:35:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:35:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:35:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:35:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:35:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:35:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:35:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-02-24 01:35:26,284 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:26,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532919393] [2022-02-24 01:35:26,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [532919393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:26,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:26,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 01:35:26,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860618110] [2022-02-24 01:35:26,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:26,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 01:35:26,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:26,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 01:35:26,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=4903, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 01:35:26,285 INFO L87 Difference]: Start difference. First operand 294 states and 362 transitions. Second operand has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-24 01:35:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:47,426 INFO L93 Difference]: Finished difference Result 588 states and 728 transitions. [2022-02-24 01:35:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-24 01:35:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Word has length 557 [2022-02-24 01:35:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:47,428 INFO L225 Difference]: With dead ends: 588 [2022-02-24 01:35:47,429 INFO L226 Difference]: Without dead ends: 577 [2022-02-24 01:35:47,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2347 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=621, Invalid=19119, Unknown=0, NotChecked=0, Total=19740 [2022-02-24 01:35:47,430 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 625 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 43234 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 43982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 43234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:47,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 427 Invalid, 43982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [748 Valid, 43234 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-02-24 01:35:47,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-24 01:35:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 298. [2022-02-24 01:35:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 222 states have (on average 1.009009009009009) internal successors, (224), 222 states have internal predecessors, (224), 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) [2022-02-24 01:35:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 367 transitions. [2022-02-24 01:35:47,594 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 367 transitions. Word has length 557 [2022-02-24 01:35:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:47,595 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 367 transitions. [2022-02-24 01:35:47,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-24 01:35:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 367 transitions. [2022-02-24 01:35:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-02-24 01:35:47,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:47,598 INFO L514 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:47,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 01:35:47,598 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1592734864, now seen corresponding path program 69 times [2022-02-24 01:35:47,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:47,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835753894] [2022-02-24 01:35:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:47,605 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:47,605 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:47,605 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:35:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:35:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:35:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:35:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:35:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:35:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:35:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:35:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:35:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:35:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:35:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:35:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:35:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:35:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:35:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:35:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:35:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:35:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:35:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:35:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:35:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:35:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:35:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:35:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:35:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:35:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:35:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:35:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:35:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:35:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:35:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:35:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:35:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:35:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:35:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:35:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:35:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:35:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:35:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:35:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:35:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:35:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:35:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:35:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:35:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:35:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:35:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:35:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:35:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:35:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:35:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:35:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:35:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:35:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:35:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:35:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:35:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:35:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:35:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:35:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:35:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:35:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:35:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:35:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:35:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:35:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:35:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:35:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:35:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:49,824 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2022-02-24 01:35:49,824 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:49,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835753894] [2022-02-24 01:35:49,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1835753894] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:49,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:49,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2022-02-24 01:35:49,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047428067] [2022-02-24 01:35:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:49,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-02-24 01:35:49,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:49,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-02-24 01:35:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=5044, Unknown=0, NotChecked=0, Total=5256 [2022-02-24 01:35:49,826 INFO L87 Difference]: Start difference. First operand 298 states and 367 transitions. Second operand has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-24 01:36:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:10,337 INFO L93 Difference]: Finished difference Result 596 states and 738 transitions. [2022-02-24 01:36:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-24 01:36:10,337 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Word has length 565 [2022-02-24 01:36:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:10,339 INFO L225 Difference]: With dead ends: 596 [2022-02-24 01:36:10,340 INFO L226 Difference]: Without dead ends: 585 [2022-02-24 01:36:10,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=630, Invalid=19676, Unknown=0, NotChecked=0, Total=20306 [2022-02-24 01:36:10,341 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 695 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39945 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 40765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 39945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:10,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 280 Invalid, 40765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [820 Valid, 39945 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-02-24 01:36:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-02-24 01:36:10,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 302. [2022-02-24 01:36:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 225 states have (on average 1.008888888888889) internal successors, (227), 225 states have internal predecessors, (227), 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) [2022-02-24 01:36:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2022-02-24 01:36:10,515 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 565 [2022-02-24 01:36:10,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:10,516 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2022-02-24 01:36:10,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-24 01:36:10,516 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2022-02-24 01:36:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2022-02-24 01:36:10,518 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:10,518 INFO L514 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:10,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 01:36:10,518 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:10,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:10,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1389763349, now seen corresponding path program 70 times [2022-02-24 01:36:10,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:10,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147663321] [2022-02-24 01:36:10,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:10,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:10,528 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:10,528 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:10,528 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:36:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:36:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:36:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:36:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:36:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:36:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:36:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:36:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:36:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:36:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:36:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:36:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:36:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:36:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:36:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:36:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:36:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:36:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:36:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:36:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:36:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:36:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:36:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:36:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:36:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:36:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:36:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:36:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:36:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:36:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:36:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:36:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:36:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:36:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:36:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:36:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:36:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:36:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:36:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:36:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:36:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:36:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:36:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:36:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:36:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:36:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:36:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:36:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:36:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:36:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:36:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:36:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:36:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:36:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:36:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:36:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:36:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:36:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:36:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:36:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:36:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:36:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:36:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:36:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:36:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:36:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:36:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:36:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:36:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 01:36:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2022-02-24 01:36:12,781 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:12,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147663321] [2022-02-24 01:36:12,781 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [147663321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:12,781 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:12,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 01:36:12,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277690221] [2022-02-24 01:36:12,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:12,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 01:36:12,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:12,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 01:36:12,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=5187, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 01:36:12,783 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-24 01:36:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:35,534 INFO L93 Difference]: Finished difference Result 604 states and 748 transitions. [2022-02-24 01:36:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-24 01:36:35,534 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Word has length 573 [2022-02-24 01:36:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:35,536 INFO L225 Difference]: With dead ends: 604 [2022-02-24 01:36:35,536 INFO L226 Difference]: Without dead ends: 593 [2022-02-24 01:36:35,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=639, Invalid=20241, Unknown=0, NotChecked=0, Total=20880 [2022-02-24 01:36:35,537 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 637 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 46216 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 46980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 46216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:35,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 453 Invalid, 46980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 46216 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2022-02-24 01:36:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-02-24 01:36:35,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 306. [2022-02-24 01:36:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 228 states have (on average 1.0087719298245614) internal successors, (230), 228 states have internal predecessors, (230), 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) [2022-02-24 01:36:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 377 transitions. [2022-02-24 01:36:35,722 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 377 transitions. Word has length 573 [2022-02-24 01:36:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:35,722 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 377 transitions. [2022-02-24 01:36:35,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-24 01:36:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 377 transitions. [2022-02-24 01:36:35,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-02-24 01:36:35,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:35,724 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:35,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-24 01:36:35,724 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash -502789562, now seen corresponding path program 71 times [2022-02-24 01:36:35,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:35,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328761853] [2022-02-24 01:36:35,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:35,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:35,730 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:35,730 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:35,730 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:36:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:36:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:36:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:36:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:36:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:36:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:36:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:36:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:36:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:36:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:36:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:36:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:36:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:36:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:36:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:36:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:36:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:36:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:36:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:36:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:36:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:36:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:36:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:36:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:36:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:36:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:36:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:36:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:36:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:36:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:36:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:36:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:36:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:36:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:36:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:36:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:36:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:36:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:36:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:36:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:36:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:36:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:36:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:36:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:36:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:36:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:36:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:36:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:36:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:36:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:36:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:36:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:36:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:36:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:36:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:36:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:36:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:36:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:36:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:36:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:36:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:36:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:36:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:36:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:36:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:36:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:36:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:36:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:36:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 01:36:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 01:36:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2022-02-24 01:36:38,044 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:38,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328761853] [2022-02-24 01:36:38,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [328761853] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:38,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:38,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2022-02-24 01:36:38,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294547572] [2022-02-24 01:36:38,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:38,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-02-24 01:36:38,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:38,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-02-24 01:36:38,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=5332, Unknown=0, NotChecked=0, Total=5550 [2022-02-24 01:36:38,045 INFO L87 Difference]: Start difference. First operand 306 states and 377 transitions. Second operand has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-24 01:37:01,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:01,549 INFO L93 Difference]: Finished difference Result 612 states and 758 transitions. [2022-02-24 01:37:01,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-24 01:37:01,549 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Word has length 581 [2022-02-24 01:37:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:01,551 INFO L225 Difference]: With dead ends: 612 [2022-02-24 01:37:01,551 INFO L226 Difference]: Without dead ends: 601 [2022-02-24 01:37:01,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2557 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=648, Invalid=20814, Unknown=0, NotChecked=0, Total=21462 [2022-02-24 01:37:01,553 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 643 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 47743 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 48515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 47743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:01,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 466 Invalid, 48515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [772 Valid, 47743 Invalid, 0 Unknown, 0 Unchecked, 15.2s Time] [2022-02-24 01:37:01,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-24 01:37:01,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 310. [2022-02-24 01:37:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 231 states have (on average 1.0086580086580086) internal successors, (233), 231 states have internal predecessors, (233), 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) [2022-02-24 01:37:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 382 transitions. [2022-02-24 01:37:01,743 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 382 transitions. Word has length 581 [2022-02-24 01:37:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:01,743 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 382 transitions. [2022-02-24 01:37:01,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-24 01:37:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 382 transitions. [2022-02-24 01:37:01,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2022-02-24 01:37:01,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:01,746 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:01,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-24 01:37:01,746 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash -247159647, now seen corresponding path program 72 times [2022-02-24 01:37:01,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:01,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277231824] [2022-02-24 01:37:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:01,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:01,752 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:01,752 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:01,752 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:37:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:37:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:37:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:37:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:37:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:37:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:37:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:37:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:37:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:37:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:37:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:37:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:37:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:37:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:37:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:37:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:37:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:37:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:37:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:37:04,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:37:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:37:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:37:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:37:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:37:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:37:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:37:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:37:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:37:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:37:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:37:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:37:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:37:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:37:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:37:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:37:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:37:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:37:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:37:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:37:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:37:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:37:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:37:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:37:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:37:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:37:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:37:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:37:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:37:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:37:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:37:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:37:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:37:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:37:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:37:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:37:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:37:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:37:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:37:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:37:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:37:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:37:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:37:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:37:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:37:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:37:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:37:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:37:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:37:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 01:37:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 01:37:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 01:37:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:04,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2022-02-24 01:37:04,117 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:04,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277231824] [2022-02-24 01:37:04,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [277231824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:04,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:04,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 01:37:04,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923598446] [2022-02-24 01:37:04,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:04,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 01:37:04,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 01:37:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=5479, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 01:37:04,119 INFO L87 Difference]: Start difference. First operand 310 states and 382 transitions. Second operand has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-24 01:37:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:29,583 INFO L93 Difference]: Finished difference Result 620 states and 768 transitions. [2022-02-24 01:37:29,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-24 01:37:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Word has length 589 [2022-02-24 01:37:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:29,586 INFO L225 Difference]: With dead ends: 620 [2022-02-24 01:37:29,586 INFO L226 Difference]: Without dead ends: 609 [2022-02-24 01:37:29,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=657, Invalid=21395, Unknown=0, NotChecked=0, Total=22052 [2022-02-24 01:37:29,588 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 601 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 53014 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 53746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 53014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:29,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 599 Invalid, 53746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [732 Valid, 53014 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2022-02-24 01:37:29,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-02-24 01:37:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 314. [2022-02-24 01:37:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 234 states have (on average 1.0085470085470085) internal successors, (236), 234 states have internal predecessors, (236), 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) [2022-02-24 01:37:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 387 transitions. [2022-02-24 01:37:29,781 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 387 transitions. Word has length 589 [2022-02-24 01:37:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:29,782 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 387 transitions. [2022-02-24 01:37:29,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-24 01:37:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 387 transitions. [2022-02-24 01:37:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-02-24 01:37:29,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:29,785 INFO L514 BasicCegarLoop]: trace histogram [73, 73, 73, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:29,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-24 01:37:29,785 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -476400644, now seen corresponding path program 73 times [2022-02-24 01:37:29,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:29,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579419305] [2022-02-24 01:37:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:29,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:29,791 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:29,791 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:29,792 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:37:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:37:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:37:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:37:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:37:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:37:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:37:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:37:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:37:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:37:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:37:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:37:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:37:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:37:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:37:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:37:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:37:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:37:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:37:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:37:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:37:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:37:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:37:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:37:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:37:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:37:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:37:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:37:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:37:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:37:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:37:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:37:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:37:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:37:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:37:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:37:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:37:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:37:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:37:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:37:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:37:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:37:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:37:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:37:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:37:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:37:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:37:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:37:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:37:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:37:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:37:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:37:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:37:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:37:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:37:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:37:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:37:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:37:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:37:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:37:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:37:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:37:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:37:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:37:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:37:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:37:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:37:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:37:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:37:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 01:37:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 01:37:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 01:37:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 01:37:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2022-02-24 01:37:32,214 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:32,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579419305] [2022-02-24 01:37:32,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [579419305] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:32,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:32,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-02-24 01:37:32,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895165577] [2022-02-24 01:37:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:32,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-24 01:37:32,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-24 01:37:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=5628, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 01:37:32,216 INFO L87 Difference]: Start difference. First operand 314 states and 387 transitions. Second operand has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-24 01:37:55,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:55,479 INFO L93 Difference]: Finished difference Result 628 states and 778 transitions. [2022-02-24 01:37:55,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-24 01:37:55,479 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Word has length 597 [2022-02-24 01:37:55,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:55,482 INFO L225 Difference]: With dead ends: 628 [2022-02-24 01:37:55,482 INFO L226 Difference]: Without dead ends: 617 [2022-02-24 01:37:55,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2702 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=666, Invalid=21984, Unknown=0, NotChecked=0, Total=22650 [2022-02-24 01:37:55,484 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 731 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 44903 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 45767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 44903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:55,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 302 Invalid, 45767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [864 Valid, 44903 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2022-02-24 01:37:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-02-24 01:37:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 318. [2022-02-24 01:37:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 237 states have internal predecessors, (239), 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) [2022-02-24 01:37:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 392 transitions. [2022-02-24 01:37:55,679 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 392 transitions. Word has length 597 [2022-02-24 01:37:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:55,679 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 392 transitions. [2022-02-24 01:37:55,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-24 01:37:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 392 transitions. [2022-02-24 01:37:55,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-02-24 01:37:55,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:55,682 INFO L514 BasicCegarLoop]: trace histogram [74, 74, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:55,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-24 01:37:55,682 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:55,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:55,682 INFO L85 PathProgramCache]: Analyzing trace with hash -691718057, now seen corresponding path program 74 times [2022-02-24 01:37:55,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:55,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206245882] [2022-02-24 01:37:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:55,691 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 2 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:55,691 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:55,691 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-24 01:37:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-24 01:37:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-24 01:37:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-24 01:37:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-24 01:37:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-24 01:37:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-24 01:37:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-24 01:37:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-24 01:37:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-24 01:37:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-24 01:37:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-24 01:37:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-24 01:37:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-24 01:37:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-24 01:37:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-24 01:37:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-24 01:37:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-24 01:37:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-24 01:37:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-24 01:37:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-24 01:37:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-24 01:37:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-24 01:37:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-24 01:37:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-24 01:37:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-24 01:37:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-24 01:37:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-24 01:37:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-24 01:37:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-24 01:37:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-24 01:37:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-24 01:37:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-24 01:37:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-24 01:37:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-24 01:37:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-24 01:37:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-24 01:37:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-24 01:37:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-24 01:37:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-24 01:37:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-24 01:37:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-24 01:37:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-24 01:37:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-24 01:37:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-24 01:37:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-24 01:37:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-24 01:37:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-24 01:37:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-24 01:37:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-24 01:37:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-24 01:37:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-24 01:37:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-24 01:37:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-24 01:37:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-24 01:37:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-24 01:37:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-24 01:37:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-24 01:37:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-24 01:37:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-24 01:37:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-24 01:37:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-24 01:37:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-24 01:37:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-24 01:37:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-24 01:37:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-24 01:37:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-24 01:37:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-24 01:37:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-24 01:37:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-24 01:37:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-24 01:37:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-24 01:37:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-24 01:37:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-24 01:37:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:58,197 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2022-02-24 01:37:58,197 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:58,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206245882] [2022-02-24 01:37:58,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1206245882] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:58,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:58,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 01:37:58,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289447400] [2022-02-24 01:37:58,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:58,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 01:37:58,198 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:58,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 01:37:58,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=5779, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 01:37:58,199 INFO L87 Difference]: Start difference. First operand 318 states and 392 transitions. Second operand has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75)