/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-lit/mcmillan2006.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-24 01:28:54,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-24 01:28:54,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-24 01:28:54,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-24 01:28:54,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-24 01:28:54,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-24 01:28:54,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-24 01:28:54,878 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 01:28:54,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-24 01:28:54,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-24 01:28:54,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-24 01:28:54,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-24 01:28:54,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-24 01:28:54,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:28:54,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-24 01:28:54,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-24 01:28:54,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-24 01:28:54,889 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-24 01:28:54,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-24 01:28:55,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-24 01:28:55,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-24 01:28:55,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-24 01:28:55,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-24 01:28:55,141 INFO L275 PluginConnector]: CDTParser initialized [2022-02-24 01:28:55,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-24 01:28:55,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceef7b1a4/8c82cb47ad8b4591b11fb65ccbb9eb0a/FLAGdc4092cbf [2022-02-24 01:28:55,516 INFO L306 CDTParser]: Found 1 translation units. [2022-02-24 01:28:55,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/mcmillan2006.i [2022-02-24 01:28:55,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceef7b1a4/8c82cb47ad8b4591b11fb65ccbb9eb0a/FLAGdc4092cbf [2022-02-24 01:28:55,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceef7b1a4/8c82cb47ad8b4591b11fb65ccbb9eb0a [2022-02-24 01:28:55,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-24 01:28:55,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-24 01:28:55,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-24 01:28:55,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-24 01:28:55,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-24 01:28:55,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:28:55" (1/1) ... [2022-02-24 01:28:55,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131501c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:55, skipping insertion in model container [2022-02-24 01:28:55,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 01:28:55" (1/1) ... [2022-02-24 01:28:55,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-24 01:28:55,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-24 01:28:56,117 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-lit/mcmillan2006.i[1009,1022] [2022-02-24 01:28:56,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:28:56,131 INFO L203 MainTranslator]: Completed pre-run [2022-02-24 01:28:56,140 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-lit/mcmillan2006.i[1009,1022] [2022-02-24 01:28:56,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-24 01:28:56,154 INFO L208 MainTranslator]: Completed translation [2022-02-24 01:28:56,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56 WrapperNode [2022-02-24 01:28:56,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-24 01:28:56,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-24 01:28:56,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-24 01:28:56,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-24 01:28:56,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-24 01:28:56,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-24 01:28:56,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-24 01:28:56,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-24 01:28:56,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (1/1) ... [2022-02-24 01:28:56,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-24 01:28:56,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-24 01:28:56,214 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 01:28:56,220 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 01:28:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-24 01:28:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-24 01:28:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-24 01:28:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-24 01:28:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-24 01:28:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-24 01:28:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-24 01:28:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-24 01:28:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-24 01:28:56,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-24 01:28:56,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-24 01:28:56,310 INFO L234 CfgBuilder]: Building ICFG [2022-02-24 01:28:56,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-24 01:28:56,445 INFO L275 CfgBuilder]: Performing block encoding [2022-02-24 01:28:56,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-24 01:28:56,449 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-24 01:28:56,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:28:56 BoogieIcfgContainer [2022-02-24 01:28:56,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-24 01:28:56,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-24 01:28:56,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-24 01:28:56,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-24 01:28:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 01:28:55" (1/3) ... [2022-02-24 01:28:56,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70de2fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:28:56, skipping insertion in model container [2022-02-24 01:28:56,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 01:28:56" (2/3) ... [2022-02-24 01:28:56,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70de2fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 01:28:56, skipping insertion in model container [2022-02-24 01:28:56,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 01:28:56" (3/3) ... [2022-02-24 01:28:56,455 INFO L111 eAbstractionObserver]: Analyzing ICFG mcmillan2006.i [2022-02-24 01:28:56,458 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-24 01:28:56,458 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-24 01:28:56,493 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-24 01:28:56,501 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 01:28:56,512 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-24 01:28:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:28:56,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-02-24 01:28:56,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:56,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:56,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:56,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1868594418, now seen corresponding path program 1 times [2022-02-24 01:28:56,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:56,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580466941] [2022-02-24 01:28:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:56,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:56,580 INFO L213 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-24 01:28:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:56,787 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 01:28:56,788 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:56,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580466941] [2022-02-24 01:28:56,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [580466941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:56,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:56,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-24 01:28:56,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983625893] [2022-02-24 01:28:56,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:56,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-24 01:28:56,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:56,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-24 01:28:56,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-24 01:28:56,819 INFO L87 Difference]: Start difference. First operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 01:28:56,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:56,961 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2022-02-24 01:28:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-24 01:28:56,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 14 [2022-02-24 01:28:56,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:56,974 INFO L225 Difference]: With dead ends: 48 [2022-02-24 01:28:56,974 INFO L226 Difference]: Without dead ends: 22 [2022-02-24 01:28:56,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-24 01:28:56,978 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:56,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:56,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-02-24 01:28:57,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-02-24 01:28:57,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-24 01:28:57,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-02-24 01:28:57,014 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2022-02-24 01:28:57,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:57,015 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-02-24 01:28:57,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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 01:28:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-02-24 01:28:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-02-24 01:28:57,016 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:57,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:57,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-24 01:28:57,017 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:57,019 INFO L85 PathProgramCache]: Analyzing trace with hash -426319892, now seen corresponding path program 1 times [2022-02-24 01:28:57,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:57,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [955336390] [2022-02-24 01:28:57,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:57,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:57,040 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:57,040 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:57,040 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,304 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 01:28:57,305 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:57,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [955336390] [2022-02-24 01:28:57,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [955336390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:57,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:57,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 01:28:57,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901910477] [2022-02-24 01:28:57,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:57,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 01:28:57,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 01:28:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-02-24 01:28:57,312 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 01:28:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:57,542 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-02-24 01:28:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-24 01:28:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 16 [2022-02-24 01:28:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:57,543 INFO L225 Difference]: With dead ends: 32 [2022-02-24 01:28:57,544 INFO L226 Difference]: Without dead ends: 30 [2022-02-24 01:28:57,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-24 01:28:57,545 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:57,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 44 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-24 01:28:57,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2022-02-24 01:28:57,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:28:57,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-02-24 01:28:57,552 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2022-02-24 01:28:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:57,553 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-02-24 01:28:57,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 01:28:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-02-24 01:28:57,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-02-24 01:28:57,553 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:57,554 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:57,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-24 01:28:57,554 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:57,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:57,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1328899642, now seen corresponding path program 1 times [2022-02-24 01:28:57,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:57,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [446908374] [2022-02-24 01:28:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:57,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:57,559 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:57,559 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:57,559 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-24 01:28:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,672 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 01:28:57,673 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:57,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [446908374] [2022-02-24 01:28:57,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [446908374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:57,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:57,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-24 01:28:57,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188386550] [2022-02-24 01:28:57,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:57,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-24 01:28:57,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:57,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-24 01:28:57,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-24 01:28:57,675 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 01:28:57,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:57,795 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2022-02-24 01:28:57,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-24 01:28:57,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 24 [2022-02-24 01:28:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:57,799 INFO L225 Difference]: With dead ends: 46 [2022-02-24 01:28:57,799 INFO L226 Difference]: Without dead ends: 30 [2022-02-24 01:28:57,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-02-24 01:28:57,804 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:57,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 37 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:57,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-24 01:28:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-02-24 01:28:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 22 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-24 01:28:57,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-02-24 01:28:57,820 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24 [2022-02-24 01:28:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:57,821 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-02-24 01:28:57,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 7 states have internal predecessors, (18), 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 01:28:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-02-24 01:28:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-24 01:28:57,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:57,821 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:57,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-24 01:28:57,822 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:57,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:57,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1936590556, now seen corresponding path program 2 times [2022-02-24 01:28:57,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:57,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045006607] [2022-02-24 01:28:57,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:57,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:57,825 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:57,825 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:57,825 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-24 01:28:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:57,955 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 01:28:57,955 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:57,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045006607] [2022-02-24 01:28:57,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2045006607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:57,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:57,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 01:28:57,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684782689] [2022-02-24 01:28:57,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:57,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 01:28:57,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 01:28:57,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-02-24 01:28:57,958 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 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 01:28:58,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:58,193 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-02-24 01:28:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-24 01:28:58,194 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 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 26 [2022-02-24 01:28:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:58,194 INFO L225 Difference]: With dead ends: 42 [2022-02-24 01:28:58,194 INFO L226 Difference]: Without dead ends: 40 [2022-02-24 01:28:58,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2022-02-24 01:28:58,195 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:58,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 54 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-24 01:28:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2022-02-24 01:28:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 01:28:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2022-02-24 01:28:58,201 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 26 [2022-02-24 01:28:58,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:58,201 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2022-02-24 01:28:58,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 10 states have internal predecessors, (20), 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 01:28:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2022-02-24 01:28:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-02-24 01:28:58,202 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:58,202 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:58,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-24 01:28:58,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:58,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1234500350, now seen corresponding path program 3 times [2022-02-24 01:28:58,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:58,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1562998521] [2022-02-24 01:28:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:58,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:58,206 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:58,206 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:58,206 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-02-24 01:28:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 01:28:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,283 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 01:28:58,283 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:58,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1562998521] [2022-02-24 01:28:58,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1562998521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:58,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:58,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-24 01:28:58,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108515628] [2022-02-24 01:28:58,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:58,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-24 01:28:58,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:58,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-24 01:28:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-02-24 01:28:58,285 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 01:28:58,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:58,423 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-02-24 01:28:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-24 01:28:58,423 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 34 [2022-02-24 01:28:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:58,424 INFO L225 Difference]: With dead ends: 60 [2022-02-24 01:28:58,424 INFO L226 Difference]: Without dead ends: 40 [2022-02-24 01:28:58,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-02-24 01:28:58,425 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:58,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:58,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-02-24 01:28:58,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-02-24 01:28:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-24 01:28:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2022-02-24 01:28:58,432 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 34 [2022-02-24 01:28:58,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:58,432 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2022-02-24 01:28:58,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 01:28:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2022-02-24 01:28:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-02-24 01:28:58,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:58,433 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:58,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-24 01:28:58,433 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:58,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:58,433 INFO L85 PathProgramCache]: Analyzing trace with hash -487899940, now seen corresponding path program 4 times [2022-02-24 01:28:58,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:58,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912424343] [2022-02-24 01:28:58,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:58,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:58,436 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:58,436 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:58,436 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-24 01:28:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 01:28:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:58,568 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 01:28:58,568 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:58,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912424343] [2022-02-24 01:28:58,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1912424343] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:58,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:58,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 01:28:58,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482911817] [2022-02-24 01:28:58,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:58,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 01:28:58,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:58,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 01:28:58,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-02-24 01:28:58,570 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 01:28:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:58,878 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2022-02-24 01:28:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-24 01:28:58,879 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 36 [2022-02-24 01:28:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:58,880 INFO L225 Difference]: With dead ends: 52 [2022-02-24 01:28:58,880 INFO L226 Difference]: Without dead ends: 50 [2022-02-24 01:28:58,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2022-02-24 01:28:58,881 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:58,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 69 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:28:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-24 01:28:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2022-02-24 01:28:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-24 01:28:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2022-02-24 01:28:58,891 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 36 [2022-02-24 01:28:58,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:58,892 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2022-02-24 01:28:58,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 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 01:28:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2022-02-24 01:28:58,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-02-24 01:28:58,893 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:58,893 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:58,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-24 01:28:58,893 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:58,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1322580298, now seen corresponding path program 5 times [2022-02-24 01:28:58,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:58,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1712996579] [2022-02-24 01:28:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:58,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:58,896 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:58,896 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:58,896 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-24 01:28:59,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 01:28:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 01:28:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,017 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 01:28:59,017 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:59,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1712996579] [2022-02-24 01:28:59,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1712996579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:59,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:59,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-24 01:28:59,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433751918] [2022-02-24 01:28:59,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:59,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-24 01:28:59,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-24 01:28:59,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-02-24 01:28:59,018 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 01:28:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:59,198 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2022-02-24 01:28:59,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-24 01:28:59,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 44 [2022-02-24 01:28:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:59,200 INFO L225 Difference]: With dead ends: 74 [2022-02-24 01:28:59,200 INFO L226 Difference]: Without dead ends: 50 [2022-02-24 01:28:59,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2022-02-24 01:28:59,201 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:59,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 51 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:28:59,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-02-24 01:28:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2022-02-24 01:28:59,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-24 01:28:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2022-02-24 01:28:59,211 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 44 [2022-02-24 01:28:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:59,212 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2022-02-24 01:28:59,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 11 states have internal predecessors, (28), 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 01:28:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2022-02-24 01:28:59,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-02-24 01:28:59,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:59,213 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:59,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-24 01:28:59,214 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:59,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:59,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1186401044, now seen corresponding path program 6 times [2022-02-24 01:28:59,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:59,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050846032] [2022-02-24 01:28:59,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:59,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:59,217 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:59,217 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:59,218 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-24 01:28:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 01:28:59,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:28:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,389 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 01:28:59,390 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:59,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050846032] [2022-02-24 01:28:59,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2050846032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:59,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:59,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 01:28:59,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953973725] [2022-02-24 01:28:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:59,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 01:28:59,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:59,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 01:28:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-02-24 01:28:59,391 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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 01:28:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:28:59,723 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2022-02-24 01:28:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-24 01:28:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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 46 [2022-02-24 01:28:59,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:28:59,724 INFO L225 Difference]: With dead ends: 62 [2022-02-24 01:28:59,724 INFO L226 Difference]: Without dead ends: 60 [2022-02-24 01:28:59,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=763, Unknown=0, NotChecked=0, Total=870 [2022-02-24 01:28:59,725 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 45 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:28:59,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 80 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:28:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-24 01:28:59,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 57. [2022-02-24 01:28:59,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 44 states have internal predecessors, (45), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-24 01:28:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2022-02-24 01:28:59,733 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 46 [2022-02-24 01:28:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:28:59,733 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2022-02-24 01:28:59,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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 01:28:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2022-02-24 01:28:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-24 01:28:59,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:28:59,734 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:28:59,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-24 01:28:59,735 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:28:59,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:28:59,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1707008786, now seen corresponding path program 7 times [2022-02-24 01:28:59,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:28:59,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065612167] [2022-02-24 01:28:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:28:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:28:59,741 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:28:59,741 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:28:59,741 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:28:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:28:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-02-24 01:28:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 01:28:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:28:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:28:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:28:59,906 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 01:28:59,907 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:28:59,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065612167] [2022-02-24 01:28:59,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1065612167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:28:59,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:28:59,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-24 01:28:59,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466592092] [2022-02-24 01:28:59,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:28:59,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-24 01:28:59,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:28:59,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-24 01:28:59,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-02-24 01:28:59,908 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 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 01:29:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:00,109 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-02-24 01:29:00,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-24 01:29:00,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 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 54 [2022-02-24 01:29:00,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:00,110 INFO L225 Difference]: With dead ends: 88 [2022-02-24 01:29:00,110 INFO L226 Difference]: Without dead ends: 60 [2022-02-24 01:29:00,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-02-24 01:29:00,111 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:00,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 53 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:29:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-02-24 01:29:00,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2022-02-24 01:29:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 7 states have call successors, (7), 7 states have call predecessors, (7), 6 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-24 01:29:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2022-02-24 01:29:00,119 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 54 [2022-02-24 01:29:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:00,119 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2022-02-24 01:29:00,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 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 01:29:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2022-02-24 01:29:00,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-02-24 01:29:00,120 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:00,120 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:00,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-24 01:29:00,120 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:00,120 INFO L85 PathProgramCache]: Analyzing trace with hash -275659828, now seen corresponding path program 8 times [2022-02-24 01:29:00,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:00,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182872726] [2022-02-24 01:29:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:00,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:00,122 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:00,123 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:00,123 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-24 01:29:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 01:29:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,332 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 01:29:00,332 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:00,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182872726] [2022-02-24 01:29:00,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [182872726] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:00,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:00,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 01:29:00,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365795208] [2022-02-24 01:29:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:00,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 01:29:00,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:00,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 01:29:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-02-24 01:29:00,334 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 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 01:29:00,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:00,800 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2022-02-24 01:29:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-24 01:29:00,801 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 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 56 [2022-02-24 01:29:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:00,802 INFO L225 Difference]: With dead ends: 72 [2022-02-24 01:29:00,802 INFO L226 Difference]: Without dead ends: 70 [2022-02-24 01:29:00,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=1001, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 01:29:00,803 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 50 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:00,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 87 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:00,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-24 01:29:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67. [2022-02-24 01:29:00,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 52 states have internal predecessors, (53), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-24 01:29:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2022-02-24 01:29:00,811 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 56 [2022-02-24 01:29:00,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:00,812 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2022-02-24 01:29:00,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 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 01:29:00,812 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2022-02-24 01:29:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-24 01:29:00,812 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:00,813 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:00,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-24 01:29:00,813 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:00,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:00,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1978425946, now seen corresponding path program 9 times [2022-02-24 01:29:00,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:00,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158346784] [2022-02-24 01:29:00,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:00,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:00,816 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:00,816 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:00,816 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-02-24 01:29:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 01:29:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:00,965 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 01:29:00,966 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:00,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158346784] [2022-02-24 01:29:00,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1158346784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:00,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:00,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-24 01:29:00,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775092522] [2022-02-24 01:29:00,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:00,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-24 01:29:00,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:00,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-24 01:29:00,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-02-24 01:29:00,968 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 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 01:29:01,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:01,226 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-02-24 01:29:01,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-24 01:29:01,227 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 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 64 [2022-02-24 01:29:01,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:01,228 INFO L225 Difference]: With dead ends: 102 [2022-02-24 01:29:01,228 INFO L226 Difference]: Without dead ends: 70 [2022-02-24 01:29:01,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-02-24 01:29:01,229 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 42 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:01,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 65 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:29:01,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-02-24 01:29:01,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2022-02-24 01:29:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-24 01:29:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2022-02-24 01:29:01,239 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 64 [2022-02-24 01:29:01,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:01,239 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2022-02-24 01:29:01,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.375) internal successors, (38), 15 states have internal predecessors, (38), 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 01:29:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2022-02-24 01:29:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-24 01:29:01,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:01,240 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:01,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-24 01:29:01,240 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:01,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:01,241 INFO L85 PathProgramCache]: Analyzing trace with hash -442513660, now seen corresponding path program 10 times [2022-02-24 01:29:01,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:01,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577055971] [2022-02-24 01:29:01,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:01,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:01,243 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:01,243 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:01,243 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 01:29:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 01:29:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:01,488 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 01:29:01,489 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:01,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577055971] [2022-02-24 01:29:01,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [577055971] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:01,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:01,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 01:29:01,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332088120] [2022-02-24 01:29:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:01,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 01:29:01,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 01:29:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2022-02-24 01:29:01,490 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 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 01:29:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:02,109 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2022-02-24 01:29:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-24 01:29:02,109 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 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 66 [2022-02-24 01:29:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:02,110 INFO L225 Difference]: With dead ends: 82 [2022-02-24 01:29:02,110 INFO L226 Difference]: Without dead ends: 80 [2022-02-24 01:29:02,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 01:29:02,111 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 55 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:02,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 106 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:29:02,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-24 01:29:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2022-02-24 01:29:02,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 60 states have internal predecessors, (61), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-24 01:29:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2022-02-24 01:29:02,121 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 66 [2022-02-24 01:29:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:02,121 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2022-02-24 01:29:02,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 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 01:29:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2022-02-24 01:29:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-02-24 01:29:02,122 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:02,122 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:02,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-24 01:29:02,122 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:02,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:02,122 INFO L85 PathProgramCache]: Analyzing trace with hash -832116514, now seen corresponding path program 11 times [2022-02-24 01:29:02,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:02,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815162839] [2022-02-24 01:29:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:02,132 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:02,132 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:02,132 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:02,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-02-24 01:29:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 01:29:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:02,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,295 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 01:29:02,295 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:02,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815162839] [2022-02-24 01:29:02,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [815162839] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:02,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:02,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-24 01:29:02,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599601084] [2022-02-24 01:29:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:02,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-24 01:29:02,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-24 01:29:02,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-24 01:29:02,296 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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 01:29:02,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:02,561 INFO L93 Difference]: Finished difference Result 116 states and 124 transitions. [2022-02-24 01:29:02,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-24 01:29:02,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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 74 [2022-02-24 01:29:02,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:02,562 INFO L225 Difference]: With dead ends: 116 [2022-02-24 01:29:02,563 INFO L226 Difference]: Without dead ends: 80 [2022-02-24 01:29:02,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=824, Unknown=0, NotChecked=0, Total=1056 [2022-02-24 01:29:02,564 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 44 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:02,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 62 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:29:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-02-24 01:29:02,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2022-02-24 01:29:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.0327868852459017) internal successors, (63), 62 states have internal predecessors, (63), 9 states have call successors, (9), 9 states have call predecessors, (9), 8 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-24 01:29:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2022-02-24 01:29:02,573 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 74 [2022-02-24 01:29:02,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:02,573 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2022-02-24 01:29:02,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 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 01:29:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2022-02-24 01:29:02,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-02-24 01:29:02,574 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:02,574 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:02,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-24 01:29:02,574 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:02,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:02,574 INFO L85 PathProgramCache]: Analyzing trace with hash 2005759164, now seen corresponding path program 12 times [2022-02-24 01:29:02,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:02,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209689527] [2022-02-24 01:29:02,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:02,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:02,576 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:02,576 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:02,577 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 01:29:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 01:29:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:02,916 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 01:29:02,916 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:02,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209689527] [2022-02-24 01:29:02,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [209689527] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:02,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:02,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 01:29:02,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633986835] [2022-02-24 01:29:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:02,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 01:29:02,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:02,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 01:29:02,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=418, Unknown=0, NotChecked=0, Total=462 [2022-02-24 01:29:02,917 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 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 01:29:03,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:03,482 INFO L93 Difference]: Finished difference Result 92 states and 93 transitions. [2022-02-24 01:29:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-24 01:29:03,482 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 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 76 [2022-02-24 01:29:03,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:03,483 INFO L225 Difference]: With dead ends: 92 [2022-02-24 01:29:03,483 INFO L226 Difference]: Without dead ends: 90 [2022-02-24 01:29:03,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=1573, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 01:29:03,484 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 60 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:03,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 117 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:29:03,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-24 01:29:03,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 87. [2022-02-24 01:29:03,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.0298507462686568) internal successors, (69), 68 states have internal predecessors, (69), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-24 01:29:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2022-02-24 01:29:03,497 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 76 [2022-02-24 01:29:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:03,497 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2022-02-24 01:29:03,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 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 01:29:03,497 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2022-02-24 01:29:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-24 01:29:03,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:03,498 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:03,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-24 01:29:03,499 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:03,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash -209232234, now seen corresponding path program 13 times [2022-02-24 01:29:03,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:03,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988152749] [2022-02-24 01:29:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:03,502 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:03,502 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:03,502 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-02-24 01:29:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 01:29:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:03,721 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 01:29:03,721 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:03,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988152749] [2022-02-24 01:29:03,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1988152749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:03,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:03,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-24 01:29:03,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046292688] [2022-02-24 01:29:03,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:03,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-24 01:29:03,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:03,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-24 01:29:03,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-02-24 01:29:03,723 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 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 01:29:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:04,061 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2022-02-24 01:29:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-24 01:29:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 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 84 [2022-02-24 01:29:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:04,062 INFO L225 Difference]: With dead ends: 130 [2022-02-24 01:29:04,062 INFO L226 Difference]: Without dead ends: 90 [2022-02-24 01:29:04,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2022-02-24 01:29:04,064 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:04,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 74 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-02-24 01:29:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2022-02-24 01:29:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-24 01:29:04,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2022-02-24 01:29:04,094 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 84 [2022-02-24 01:29:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:04,094 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2022-02-24 01:29:04,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 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 01:29:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2022-02-24 01:29:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-24 01:29:04,094 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:04,094 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:04,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-24 01:29:04,095 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:04,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:04,095 INFO L85 PathProgramCache]: Analyzing trace with hash 814689524, now seen corresponding path program 14 times [2022-02-24 01:29:04,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:04,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984755582] [2022-02-24 01:29:04,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:04,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:04,098 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:04,098 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:04,098 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 01:29:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:29:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:04,444 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 01:29:04,444 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:04,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984755582] [2022-02-24 01:29:04,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [984755582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:04,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:04,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 01:29:04,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231262759] [2022-02-24 01:29:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:04,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 01:29:04,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 01:29:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=504, Unknown=0, NotChecked=0, Total=552 [2022-02-24 01:29:04,446 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 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 01:29:05,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:05,222 INFO L93 Difference]: Finished difference Result 102 states and 103 transitions. [2022-02-24 01:29:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-24 01:29:05,222 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 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 86 [2022-02-24 01:29:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:05,223 INFO L225 Difference]: With dead ends: 102 [2022-02-24 01:29:05,223 INFO L226 Difference]: Without dead ends: 100 [2022-02-24 01:29:05,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=1907, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 01:29:05,224 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:05,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 120 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:29:05,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-24 01:29:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2022-02-24 01:29:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-24 01:29:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2022-02-24 01:29:05,236 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 86 [2022-02-24 01:29:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:05,237 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2022-02-24 01:29:05,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.1739130434782608) internal successors, (50), 22 states have internal predecessors, (50), 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 01:29:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2022-02-24 01:29:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-24 01:29:05,238 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:05,238 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:05,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-24 01:29:05,238 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1169596722, now seen corresponding path program 15 times [2022-02-24 01:29:05,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:05,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333428542] [2022-02-24 01:29:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:05,242 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:05,242 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:05,242 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-02-24 01:29:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:29:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:05,449 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 01:29:05,449 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:05,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333428542] [2022-02-24 01:29:05,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [333428542] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:05,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:05,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-24 01:29:05,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242516112] [2022-02-24 01:29:05,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:05,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-24 01:29:05,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:05,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-24 01:29:05,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2022-02-24 01:29:05,452 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 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 01:29:05,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:05,780 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-02-24 01:29:05,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-24 01:29:05,780 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 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 94 [2022-02-24 01:29:05,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:05,781 INFO L225 Difference]: With dead ends: 144 [2022-02-24 01:29:05,781 INFO L226 Difference]: Without dead ends: 100 [2022-02-24 01:29:05,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1292, Unknown=0, NotChecked=0, Total=1640 [2022-02-24 01:29:05,782 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:05,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 76 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-24 01:29:05,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-02-24 01:29:05,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 99. [2022-02-24 01:29:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.025974025974026) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-24 01:29:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2022-02-24 01:29:05,802 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 94 [2022-02-24 01:29:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:05,802 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2022-02-24 01:29:05,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 21 states have internal predecessors, (53), 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 01:29:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2022-02-24 01:29:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-24 01:29:05,803 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:05,803 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:05,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-24 01:29:05,804 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:05,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:05,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1315000236, now seen corresponding path program 16 times [2022-02-24 01:29:05,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:05,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286115589] [2022-02-24 01:29:05,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:05,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:05,806 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:05,806 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:05,806 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 01:29:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:06,193 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 01:29:06,193 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:06,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286115589] [2022-02-24 01:29:06,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1286115589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:06,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:06,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 01:29:06,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929169988] [2022-02-24 01:29:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:06,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 01:29:06,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:06,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 01:29:06,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2022-02-24 01:29:06,194 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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 01:29:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:07,207 INFO L93 Difference]: Finished difference Result 112 states and 113 transitions. [2022-02-24 01:29:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-24 01:29:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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 96 [2022-02-24 01:29:07,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:07,208 INFO L225 Difference]: With dead ends: 112 [2022-02-24 01:29:07,208 INFO L226 Difference]: Without dead ends: 110 [2022-02-24 01:29:07,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=2273, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 01:29:07,209 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:07,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 131 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:29:07,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-24 01:29:07,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2022-02-24 01:29:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 84 states have internal predecessors, (85), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-24 01:29:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2022-02-24 01:29:07,221 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 96 [2022-02-24 01:29:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:07,222 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2022-02-24 01:29:07,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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 01:29:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2022-02-24 01:29:07,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-02-24 01:29:07,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:07,223 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:07,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-24 01:29:07,223 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:07,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1911993978, now seen corresponding path program 17 times [2022-02-24 01:29:07,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:07,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984063740] [2022-02-24 01:29:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:07,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:07,225 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:07,225 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:07,226 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-02-24 01:29:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:07,419 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 01:29:07,419 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:07,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984063740] [2022-02-24 01:29:07,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [984063740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:07,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:07,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-24 01:29:07,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644595115] [2022-02-24 01:29:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:07,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-24 01:29:07,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-24 01:29:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2022-02-24 01:29:07,420 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 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 01:29:07,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:07,809 INFO L93 Difference]: Finished difference Result 158 states and 169 transitions. [2022-02-24 01:29:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-24 01:29:07,809 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 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 104 [2022-02-24 01:29:07,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:07,810 INFO L225 Difference]: With dead ends: 158 [2022-02-24 01:29:07,810 INFO L226 Difference]: Without dead ends: 110 [2022-02-24 01:29:07,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=415, Invalid=1565, Unknown=0, NotChecked=0, Total=1980 [2022-02-24 01:29:07,812 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 50 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:07,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 68 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-02-24 01:29:07,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2022-02-24 01:29:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 85 states have (on average 1.0235294117647058) internal successors, (87), 86 states have internal predecessors, (87), 12 states have call successors, (12), 12 states have call predecessors, (12), 11 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-24 01:29:07,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2022-02-24 01:29:07,828 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 104 [2022-02-24 01:29:07,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:07,828 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2022-02-24 01:29:07,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 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 01:29:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2022-02-24 01:29:07,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-24 01:29:07,830 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:07,830 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:07,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-24 01:29:07,830 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:07,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:07,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1220002588, now seen corresponding path program 18 times [2022-02-24 01:29:07,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:07,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366356425] [2022-02-24 01:29:07,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:07,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:07,833 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:07,834 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:07,834 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 01:29:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:08,249 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 01:29:08,249 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:08,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366356425] [2022-02-24 01:29:08,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1366356425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:08,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:08,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 01:29:08,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131934803] [2022-02-24 01:29:08,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:08,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 01:29:08,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:08,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 01:29:08,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2022-02-24 01:29:08,251 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 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 01:29:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:09,339 INFO L93 Difference]: Finished difference Result 122 states and 123 transitions. [2022-02-24 01:29:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-24 01:29:09,340 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 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 106 [2022-02-24 01:29:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:09,341 INFO L225 Difference]: With dead ends: 122 [2022-02-24 01:29:09,341 INFO L226 Difference]: Without dead ends: 120 [2022-02-24 01:29:09,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=2671, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 01:29:09,344 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 75 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:09,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 142 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:29:09,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-24 01:29:09,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-02-24 01:29:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.021978021978022) internal successors, (93), 92 states have internal predecessors, (93), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-24 01:29:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 118 transitions. [2022-02-24 01:29:09,363 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 118 transitions. Word has length 106 [2022-02-24 01:29:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:09,363 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 118 transitions. [2022-02-24 01:29:09,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 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 01:29:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 118 transitions. [2022-02-24 01:29:09,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-24 01:29:09,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:09,364 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:09,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-24 01:29:09,364 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:09,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:09,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2058059454, now seen corresponding path program 19 times [2022-02-24 01:29:09,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:09,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456496045] [2022-02-24 01:29:09,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:09,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:09,369 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:09,369 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:09,369 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-02-24 01:29:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:09,644 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 01:29:09,644 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:09,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456496045] [2022-02-24 01:29:09,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1456496045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:09,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:09,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-24 01:29:09,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669880828] [2022-02-24 01:29:09,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:09,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-24 01:29:09,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:09,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-24 01:29:09,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2022-02-24 01:29:09,646 INFO L87 Difference]: Start difference. First operand 117 states and 118 transitions. Second operand has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 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 01:29:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:10,163 INFO L93 Difference]: Finished difference Result 172 states and 184 transitions. [2022-02-24 01:29:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-24 01:29:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 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 114 [2022-02-24 01:29:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:10,166 INFO L225 Difference]: With dead ends: 172 [2022-02-24 01:29:10,166 INFO L226 Difference]: Without dead ends: 120 [2022-02-24 01:29:10,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=488, Invalid=1864, Unknown=0, NotChecked=0, Total=2352 [2022-02-24 01:29:10,167 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:10,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 75 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-02-24 01:29:10,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2022-02-24 01:29:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.021505376344086) internal successors, (95), 94 states have internal predecessors, (95), 13 states have call successors, (13), 13 states have call predecessors, (13), 12 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-24 01:29:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2022-02-24 01:29:10,182 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 114 [2022-02-24 01:29:10,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:10,183 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2022-02-24 01:29:10,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.423076923076923) internal successors, (63), 25 states have internal predecessors, (63), 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 01:29:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2022-02-24 01:29:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-24 01:29:10,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:10,183 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:10,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-24 01:29:10,184 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:10,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1880118428, now seen corresponding path program 20 times [2022-02-24 01:29:10,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:10,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621932460] [2022-02-24 01:29:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:10,186 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:10,186 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:10,187 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 01:29:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:10,628 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 01:29:10,628 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:10,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621932460] [2022-02-24 01:29:10,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1621932460] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:10,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:10,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 01:29:10,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532213438] [2022-02-24 01:29:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:10,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 01:29:10,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 01:29:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=810, Unknown=0, NotChecked=0, Total=870 [2022-02-24 01:29:10,629 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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 01:29:11,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:11,841 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2022-02-24 01:29:11,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-24 01:29:11,842 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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 116 [2022-02-24 01:29:11,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:11,842 INFO L225 Difference]: With dead ends: 132 [2022-02-24 01:29:11,842 INFO L226 Difference]: Without dead ends: 130 [2022-02-24 01:29:11,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=205, Invalid=3101, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 01:29:11,844 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 2360 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 2360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:11,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 157 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 2360 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:29:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-24 01:29:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-02-24 01:29:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 99 states have (on average 1.02020202020202) internal successors, (101), 100 states have internal predecessors, (101), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 01:29:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2022-02-24 01:29:11,878 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 116 [2022-02-24 01:29:11,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:11,878 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2022-02-24 01:29:11,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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 01:29:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2022-02-24 01:29:11,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-24 01:29:11,879 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:11,879 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:11,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-24 01:29:11,880 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:11,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:11,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1566810506, now seen corresponding path program 21 times [2022-02-24 01:29:11,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:11,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327613535] [2022-02-24 01:29:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:11,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:11,882 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:11,882 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:11,882 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-02-24 01:29:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:29:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:12,158 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 01:29:12,158 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:12,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327613535] [2022-02-24 01:29:12,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [327613535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:12,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:12,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-24 01:29:12,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820506912] [2022-02-24 01:29:12,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:12,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-24 01:29:12,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-24 01:29:12,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=581, Unknown=0, NotChecked=0, Total=756 [2022-02-24 01:29:12,160 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 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 01:29:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:12,735 INFO L93 Difference]: Finished difference Result 186 states and 199 transitions. [2022-02-24 01:29:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-24 01:29:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 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 124 [2022-02-24 01:29:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:12,736 INFO L225 Difference]: With dead ends: 186 [2022-02-24 01:29:12,736 INFO L226 Difference]: Without dead ends: 130 [2022-02-24 01:29:12,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=567, Invalid=2189, Unknown=0, NotChecked=0, Total=2756 [2022-02-24 01:29:12,738 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 54 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:12,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 77 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-24 01:29:12,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 129. [2022-02-24 01:29:12,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 101 states have (on average 1.0198019801980198) internal successors, (103), 102 states have internal predecessors, (103), 14 states have call successors, (14), 14 states have call predecessors, (14), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-24 01:29:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2022-02-24 01:29:12,753 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 124 [2022-02-24 01:29:12,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:12,753 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2022-02-24 01:29:12,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.4285714285714284) internal successors, (68), 27 states have internal predecessors, (68), 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 01:29:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2022-02-24 01:29:12,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-02-24 01:29:12,754 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:12,755 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:12,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-24 01:29:12,755 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:12,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1844578604, now seen corresponding path program 22 times [2022-02-24 01:29:12,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:12,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747669061] [2022-02-24 01:29:12,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:12,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:12,757 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:12,757 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:12,757 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:29:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:13,217 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 01:29:13,217 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:13,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747669061] [2022-02-24 01:29:13,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [747669061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:13,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:13,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 01:29:13,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338395694] [2022-02-24 01:29:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:13,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 01:29:13,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 01:29:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=928, Unknown=0, NotChecked=0, Total=992 [2022-02-24 01:29:13,218 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 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 01:29:14,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:14,639 INFO L93 Difference]: Finished difference Result 142 states and 143 transitions. [2022-02-24 01:29:14,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-24 01:29:14,640 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 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 126 [2022-02-24 01:29:14,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:14,640 INFO L225 Difference]: With dead ends: 142 [2022-02-24 01:29:14,641 INFO L226 Difference]: Without dead ends: 140 [2022-02-24 01:29:14,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=219, Invalid=3563, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 01:29:14,642 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:14,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 172 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 01:29:14,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-24 01:29:14,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-02-24 01:29:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 107 states have (on average 1.0186915887850467) internal successors, (109), 108 states have internal predecessors, (109), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-24 01:29:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 138 transitions. [2022-02-24 01:29:14,659 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 138 transitions. Word has length 126 [2022-02-24 01:29:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:14,660 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 138 transitions. [2022-02-24 01:29:14,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.2580645161290325) internal successors, (70), 30 states have internal predecessors, (70), 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 01:29:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 138 transitions. [2022-02-24 01:29:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-02-24 01:29:14,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:14,661 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:14,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-24 01:29:14,662 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:14,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash 886065326, now seen corresponding path program 23 times [2022-02-24 01:29:14,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:14,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707463325] [2022-02-24 01:29:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:14,665 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:14,665 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:14,665 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-02-24 01:29:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:29:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:14,928 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 01:29:14,928 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:14,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707463325] [2022-02-24 01:29:14,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [707463325] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:14,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:14,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-24 01:29:14,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568953110] [2022-02-24 01:29:14,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:14,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-24 01:29:14,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:14,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-24 01:29:14,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2022-02-24 01:29:14,940 INFO L87 Difference]: Start difference. First operand 137 states and 138 transitions. Second operand has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 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 01:29:15,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:15,377 INFO L93 Difference]: Finished difference Result 200 states and 214 transitions. [2022-02-24 01:29:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-24 01:29:15,377 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 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 134 [2022-02-24 01:29:15,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:15,378 INFO L225 Difference]: With dead ends: 200 [2022-02-24 01:29:15,378 INFO L226 Difference]: Without dead ends: 140 [2022-02-24 01:29:15,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=652, Invalid=2540, Unknown=0, NotChecked=0, Total=3192 [2022-02-24 01:29:15,379 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 56 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:15,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 79 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:15,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-02-24 01:29:15,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2022-02-24 01:29:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-24 01:29:15,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2022-02-24 01:29:15,400 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 134 [2022-02-24 01:29:15,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:15,400 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2022-02-24 01:29:15,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 29 states have internal predecessors, (73), 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 01:29:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2022-02-24 01:29:15,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-02-24 01:29:15,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:15,402 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:15,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-24 01:29:15,402 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:15,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:15,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1055030388, now seen corresponding path program 24 times [2022-02-24 01:29:15,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:15,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703503921] [2022-02-24 01:29:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:15,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:15,405 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:15,405 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:15,405 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:16,114 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 01:29:16,114 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:16,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703503921] [2022-02-24 01:29:16,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1703503921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:16,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:16,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 01:29:16,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186584323] [2022-02-24 01:29:16,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:16,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 01:29:16,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:16,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 01:29:16,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 01:29:16,116 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 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 01:29:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:17,949 INFO L93 Difference]: Finished difference Result 152 states and 153 transitions. [2022-02-24 01:29:17,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-24 01:29:17,955 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 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 136 [2022-02-24 01:29:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:17,956 INFO L225 Difference]: With dead ends: 152 [2022-02-24 01:29:17,957 INFO L226 Difference]: Without dead ends: 150 [2022-02-24 01:29:17,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=245, Invalid=4045, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 01:29:17,958 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 88 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:17,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 179 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-24 01:29:17,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-24 01:29:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2022-02-24 01:29:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-24 01:29:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 148 transitions. [2022-02-24 01:29:17,989 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 148 transitions. Word has length 136 [2022-02-24 01:29:17,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:17,991 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 148 transitions. [2022-02-24 01:29:17,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.272727272727273) internal successors, (75), 32 states have internal predecessors, (75), 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 01:29:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 148 transitions. [2022-02-24 01:29:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-24 01:29:17,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:17,993 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:17,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-24 01:29:17,993 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:17,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:17,994 INFO L85 PathProgramCache]: Analyzing trace with hash -490496666, now seen corresponding path program 25 times [2022-02-24 01:29:17,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:17,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634483440] [2022-02-24 01:29:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:17,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:17,998 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:17,999 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:17,999 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-02-24 01:29:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:29:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:18,340 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 01:29:18,340 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:18,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634483440] [2022-02-24 01:29:18,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1634483440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:18,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:18,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-24 01:29:18,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439925559] [2022-02-24 01:29:18,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:18,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-24 01:29:18,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:18,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-24 01:29:18,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=761, Unknown=0, NotChecked=0, Total=992 [2022-02-24 01:29:18,342 INFO L87 Difference]: Start difference. First operand 147 states and 148 transitions. Second operand has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 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 01:29:18,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:18,946 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-02-24 01:29:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-24 01:29:18,946 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 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 144 [2022-02-24 01:29:18,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:18,947 INFO L225 Difference]: With dead ends: 214 [2022-02-24 01:29:18,947 INFO L226 Difference]: Without dead ends: 150 [2022-02-24 01:29:18,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=743, Invalid=2917, Unknown=0, NotChecked=0, Total=3660 [2022-02-24 01:29:18,949 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 58 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:18,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 71 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:18,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-02-24 01:29:18,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 149. [2022-02-24 01:29:18,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 117 states have (on average 1.017094017094017) internal successors, (119), 118 states have internal predecessors, (119), 16 states have call successors, (16), 16 states have call predecessors, (16), 15 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-24 01:29:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2022-02-24 01:29:18,970 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 144 [2022-02-24 01:29:18,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:18,971 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2022-02-24 01:29:18,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.4375) internal successors, (78), 31 states have internal predecessors, (78), 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 01:29:18,971 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2022-02-24 01:29:18,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-24 01:29:18,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:18,972 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:18,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-24 01:29:18,972 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:18,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash 564353732, now seen corresponding path program 26 times [2022-02-24 01:29:18,972 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:18,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695999951] [2022-02-24 01:29:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:18,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:18,974 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:18,974 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:18,974 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:29:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:29:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:29:19,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:29:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:19,453 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 01:29:19,453 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:19,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695999951] [2022-02-24 01:29:19,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1695999951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:19,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:19,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 01:29:19,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987605076] [2022-02-24 01:29:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:19,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 01:29:19,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 01:29:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=1188, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 01:29:19,455 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 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 01:29:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:21,222 INFO L93 Difference]: Finished difference Result 162 states and 163 transitions. [2022-02-24 01:29:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-24 01:29:21,223 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 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 146 [2022-02-24 01:29:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:21,224 INFO L225 Difference]: With dead ends: 162 [2022-02-24 01:29:21,224 INFO L226 Difference]: Without dead ends: 160 [2022-02-24 01:29:21,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=247, Invalid=4583, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 01:29:21,225 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 95 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 3578 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 3578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:21,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 190 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 3578 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 01:29:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-24 01:29:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-02-24 01:29:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.016260162601626) internal successors, (125), 124 states have internal predecessors, (125), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 01:29:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 158 transitions. [2022-02-24 01:29:21,246 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 158 transitions. Word has length 146 [2022-02-24 01:29:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:21,247 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 158 transitions. [2022-02-24 01:29:21,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 34 states have internal predecessors, (80), 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 01:29:21,247 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 158 transitions. [2022-02-24 01:29:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-24 01:29:21,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:21,248 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:21,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-24 01:29:21,248 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:21,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash -696599394, now seen corresponding path program 27 times [2022-02-24 01:29:21,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:21,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796385847] [2022-02-24 01:29:21,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:21,250 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:21,251 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:21,251 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-02-24 01:29:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:29:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:29:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:29:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:29:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:29:21,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:21,627 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 01:29:21,627 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:21,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796385847] [2022-02-24 01:29:21,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [796385847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:21,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:21,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-24 01:29:21,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211066066] [2022-02-24 01:29:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:21,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-24 01:29:21,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-24 01:29:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-24 01:29:21,628 INFO L87 Difference]: Start difference. First operand 157 states and 158 transitions. Second operand has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 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 01:29:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:22,310 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2022-02-24 01:29:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-24 01:29:22,311 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 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 154 [2022-02-24 01:29:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:22,312 INFO L225 Difference]: With dead ends: 228 [2022-02-24 01:29:22,312 INFO L226 Difference]: Without dead ends: 160 [2022-02-24 01:29:22,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=840, Invalid=3320, Unknown=0, NotChecked=0, Total=4160 [2022-02-24 01:29:22,314 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:22,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 88 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:29:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-02-24 01:29:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2022-02-24 01:29:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 125 states have (on average 1.016) internal successors, (127), 126 states have internal predecessors, (127), 17 states have call successors, (17), 17 states have call predecessors, (17), 16 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-24 01:29:22,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2022-02-24 01:29:22,339 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 154 [2022-02-24 01:29:22,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:22,340 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2022-02-24 01:29:22,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.4411764705882355) internal successors, (83), 33 states have internal predecessors, (83), 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 01:29:22,340 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2022-02-24 01:29:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-24 01:29:22,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:22,341 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:22,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-24 01:29:22,341 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:22,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:22,341 INFO L85 PathProgramCache]: Analyzing trace with hash -829694852, now seen corresponding path program 28 times [2022-02-24 01:29:22,342 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:22,342 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1238615435] [2022-02-24 01:29:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:22,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:22,344 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:22,344 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:22,344 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:29:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:29:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:29:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:29:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:29:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:22,983 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 01:29:22,983 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:22,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1238615435] [2022-02-24 01:29:22,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1238615435] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:22,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:22,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 01:29:22,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934995918] [2022-02-24 01:29:22,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:22,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 01:29:22,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:22,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 01:29:22,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=1330, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 01:29:22,984 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 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 01:29:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:24,754 INFO L93 Difference]: Finished difference Result 172 states and 173 transitions. [2022-02-24 01:29:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-24 01:29:24,754 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 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 156 [2022-02-24 01:29:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:24,756 INFO L225 Difference]: With dead ends: 172 [2022-02-24 01:29:24,756 INFO L226 Difference]: Without dead ends: 170 [2022-02-24 01:29:24,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=261, Invalid=5141, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 01:29:24,757 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 100 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 4094 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 4094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:24,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 205 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 4094 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-24 01:29:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-24 01:29:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2022-02-24 01:29:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 131 states have (on average 1.015267175572519) internal successors, (133), 132 states have internal predecessors, (133), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-24 01:29:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 168 transitions. [2022-02-24 01:29:24,815 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 168 transitions. Word has length 156 [2022-02-24 01:29:24,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:24,815 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 168 transitions. [2022-02-24 01:29:24,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 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 01:29:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 168 transitions. [2022-02-24 01:29:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-24 01:29:24,819 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:24,820 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:24,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-24 01:29:24,821 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash 679609942, now seen corresponding path program 29 times [2022-02-24 01:29:24,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:24,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731479039] [2022-02-24 01:29:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:24,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:24,826 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:24,826 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:24,826 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-02-24 01:29:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:29:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:29:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:29:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:29:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:29:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:29:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:25,218 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 01:29:25,218 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:25,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731479039] [2022-02-24 01:29:25,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [731479039] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:25,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:25,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-24 01:29:25,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682511738] [2022-02-24 01:29:25,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:25,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-24 01:29:25,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:25,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-24 01:29:25,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2022-02-24 01:29:25,219 INFO L87 Difference]: Start difference. First operand 167 states and 168 transitions. Second operand has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 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 01:29:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:25,925 INFO L93 Difference]: Finished difference Result 242 states and 259 transitions. [2022-02-24 01:29:25,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-24 01:29:25,933 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 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 164 [2022-02-24 01:29:25,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:25,934 INFO L225 Difference]: With dead ends: 242 [2022-02-24 01:29:25,934 INFO L226 Difference]: Without dead ends: 170 [2022-02-24 01:29:25,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=943, Invalid=3749, Unknown=0, NotChecked=0, Total=4692 [2022-02-24 01:29:25,936 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 62 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:25,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 95 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:29:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-02-24 01:29:25,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2022-02-24 01:29:25,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 133 states have (on average 1.0150375939849625) internal successors, (135), 134 states have internal predecessors, (135), 18 states have call successors, (18), 18 states have call predecessors, (18), 17 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-24 01:29:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2022-02-24 01:29:25,961 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 164 [2022-02-24 01:29:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:25,961 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2022-02-24 01:29:25,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 35 states have internal predecessors, (88), 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 01:29:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2022-02-24 01:29:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-24 01:29:25,962 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:25,962 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:25,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-24 01:29:25,962 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash -817141580, now seen corresponding path program 30 times [2022-02-24 01:29:25,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:25,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087568906] [2022-02-24 01:29:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:25,965 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:25,965 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:25,965 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:29:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:29:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:29:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:29:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:29:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:26,609 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 01:29:26,609 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:26,609 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2087568906] [2022-02-24 01:29:26,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2087568906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:26,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:26,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 01:29:26,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859547318] [2022-02-24 01:29:26,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:26,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 01:29:26,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:26,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 01:29:26,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1480, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 01:29:26,611 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 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 01:29:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:28,668 INFO L93 Difference]: Finished difference Result 182 states and 183 transitions. [2022-02-24 01:29:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-24 01:29:28,669 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 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 166 [2022-02-24 01:29:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:28,670 INFO L225 Difference]: With dead ends: 182 [2022-02-24 01:29:28,670 INFO L226 Difference]: Without dead ends: 180 [2022-02-24 01:29:28,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=275, Invalid=5731, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 01:29:28,671 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 105 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 4510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:28,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 208 Invalid, 4510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-24 01:29:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-24 01:29:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2022-02-24 01:29:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.014388489208633) internal successors, (141), 140 states have internal predecessors, (141), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-24 01:29:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 178 transitions. [2022-02-24 01:29:28,723 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 178 transitions. Word has length 166 [2022-02-24 01:29:28,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:28,723 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 178 transitions. [2022-02-24 01:29:28,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 38 states have internal predecessors, (90), 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 01:29:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 178 transitions. [2022-02-24 01:29:28,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-24 01:29:28,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:28,725 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:28,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-24 01:29:28,725 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:28,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:28,725 INFO L85 PathProgramCache]: Analyzing trace with hash -705832306, now seen corresponding path program 31 times [2022-02-24 01:29:28,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:28,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369980098] [2022-02-24 01:29:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:28,729 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:28,729 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:28,730 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-02-24 01:29:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:29:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:29:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:29:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:29:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:29:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:29:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:29,191 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 01:29:29,192 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:29,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369980098] [2022-02-24 01:29:29,192 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1369980098] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:29,192 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:29,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-24 01:29:29,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054379111] [2022-02-24 01:29:29,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:29,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-24 01:29:29,193 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:29,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-24 01:29:29,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-24 01:29:29,193 INFO L87 Difference]: Start difference. First operand 177 states and 178 transitions. Second operand has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 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 01:29:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:30,154 INFO L93 Difference]: Finished difference Result 256 states and 274 transitions. [2022-02-24 01:29:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-24 01:29:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 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 174 [2022-02-24 01:29:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:30,156 INFO L225 Difference]: With dead ends: 256 [2022-02-24 01:29:30,156 INFO L226 Difference]: Without dead ends: 180 [2022-02-24 01:29:30,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1052, Invalid=4204, Unknown=0, NotChecked=0, Total=5256 [2022-02-24 01:29:30,158 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:30,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 122 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:29:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-02-24 01:29:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 179. [2022-02-24 01:29:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 142 states have internal predecessors, (143), 19 states have call successors, (19), 19 states have call predecessors, (19), 18 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-24 01:29:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2022-02-24 01:29:30,185 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 174 [2022-02-24 01:29:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:30,185 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2022-02-24 01:29:30,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.4473684210526314) internal successors, (93), 37 states have internal predecessors, (93), 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 01:29:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2022-02-24 01:29:30,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-02-24 01:29:30,187 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:30,187 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:30,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-24 01:29:30,187 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:30,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:30,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1914806420, now seen corresponding path program 32 times [2022-02-24 01:29:30,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:30,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1285032833] [2022-02-24 01:29:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:30,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:30,189 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:30,189 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:30,189 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:29:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:29:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:29:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:29:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:29:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:30,963 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 01:29:30,963 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:30,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1285032833] [2022-02-24 01:29:30,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1285032833] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:30,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:30,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 01:29:30,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634597936] [2022-02-24 01:29:30,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:30,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 01:29:30,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:30,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 01:29:30,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1638, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 01:29:30,966 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 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 01:29:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:33,076 INFO L93 Difference]: Finished difference Result 192 states and 193 transitions. [2022-02-24 01:29:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-24 01:29:33,077 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 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 176 [2022-02-24 01:29:33,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:33,085 INFO L225 Difference]: With dead ends: 192 [2022-02-24 01:29:33,086 INFO L226 Difference]: Without dead ends: 190 [2022-02-24 01:29:33,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=289, Invalid=6353, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 01:29:33,087 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 110 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 5048 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 5160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 5048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:33,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 223 Invalid, 5160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 5048 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-24 01:29:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-24 01:29:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-02-24 01:29:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 148 states have internal predecessors, (149), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-24 01:29:33,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 188 transitions. [2022-02-24 01:29:33,115 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 188 transitions. Word has length 176 [2022-02-24 01:29:33,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:33,115 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 188 transitions. [2022-02-24 01:29:33,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.317073170731707) internal successors, (95), 40 states have internal predecessors, (95), 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 01:29:33,116 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 188 transitions. [2022-02-24 01:29:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-02-24 01:29:33,118 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:33,118 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:33,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-24 01:29:33,118 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:33,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:33,119 INFO L85 PathProgramCache]: Analyzing trace with hash 911907142, now seen corresponding path program 33 times [2022-02-24 01:29:33,119 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:33,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [82303178] [2022-02-24 01:29:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:33,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:33,121 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:33,121 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:33,121 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-02-24 01:29:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:29:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:29:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:29:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:29:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:29:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:29:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:33,538 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 01:29:33,538 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:33,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [82303178] [2022-02-24 01:29:33,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [82303178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:33,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:33,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-24 01:29:33,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056303268] [2022-02-24 01:29:33,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:33,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-24 01:29:33,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:33,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-24 01:29:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1193, Unknown=0, NotChecked=0, Total=1560 [2022-02-24 01:29:33,540 INFO L87 Difference]: Start difference. First operand 187 states and 188 transitions. Second operand has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 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 01:29:34,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:34,352 INFO L93 Difference]: Finished difference Result 270 states and 289 transitions. [2022-02-24 01:29:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-24 01:29:34,353 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 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 184 [2022-02-24 01:29:34,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:34,354 INFO L225 Difference]: With dead ends: 270 [2022-02-24 01:29:34,354 INFO L226 Difference]: Without dead ends: 190 [2022-02-24 01:29:34,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1167, Invalid=4685, Unknown=0, NotChecked=0, Total=5852 [2022-02-24 01:29:34,355 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 66 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:34,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 79 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-24 01:29:34,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-02-24 01:29:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2022-02-24 01:29:34,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 149 states have (on average 1.0134228187919463) internal successors, (151), 150 states have internal predecessors, (151), 20 states have call successors, (20), 20 states have call predecessors, (20), 19 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-24 01:29:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 190 transitions. [2022-02-24 01:29:34,384 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 190 transitions. Word has length 184 [2022-02-24 01:29:34,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:34,384 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 190 transitions. [2022-02-24 01:29:34,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.45) internal successors, (98), 39 states have internal predecessors, (98), 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 01:29:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 190 transitions. [2022-02-24 01:29:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-02-24 01:29:34,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:34,385 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:34,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-24 01:29:34,385 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:34,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -859234140, now seen corresponding path program 34 times [2022-02-24 01:29:34,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:34,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906330987] [2022-02-24 01:29:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:34,388 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:34,389 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:34,389 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:35,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:35,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:35,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:29:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:29:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:29:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:29:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:29:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:29:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:29:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:29:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:29:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:35,183 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 01:29:35,183 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:35,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906330987] [2022-02-24 01:29:35,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [906330987] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:35,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:35,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 01:29:35,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797590891] [2022-02-24 01:29:35,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:35,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 01:29:35,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:35,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 01:29:35,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1804, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 01:29:35,185 INFO L87 Difference]: Start difference. First operand 189 states and 190 transitions. Second operand has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 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 01:29:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:37,564 INFO L93 Difference]: Finished difference Result 202 states and 203 transitions. [2022-02-24 01:29:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-24 01:29:37,564 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 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 186 [2022-02-24 01:29:37,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:37,565 INFO L225 Difference]: With dead ends: 202 [2022-02-24 01:29:37,565 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 01:29:37,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=303, Invalid=7007, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 01:29:37,566 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 115 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 5657 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 5775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 5657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:37,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 238 Invalid, 5775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 5657 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-24 01:29:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 01:29:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 197. [2022-02-24 01:29:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 155 states have (on average 1.0129032258064516) internal successors, (157), 156 states have internal predecessors, (157), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-24 01:29:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 198 transitions. [2022-02-24 01:29:37,600 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 198 transitions. Word has length 186 [2022-02-24 01:29:37,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:37,601 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 198 transitions. [2022-02-24 01:29:37,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.3255813953488373) internal successors, (100), 42 states have internal predecessors, (100), 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 01:29:37,601 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 198 transitions. [2022-02-24 01:29:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-02-24 01:29:37,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:37,601 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:37,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-24 01:29:37,602 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:37,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:37,602 INFO L85 PathProgramCache]: Analyzing trace with hash -236150146, now seen corresponding path program 35 times [2022-02-24 01:29:37,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:37,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227688569] [2022-02-24 01:29:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:37,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:37,604 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:37,604 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:37,604 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-02-24 01:29:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:29:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:29:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:29:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:29:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:29:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:29:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:29:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:29:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:29:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:29:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:38,113 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 01:29:38,113 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:38,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227688569] [2022-02-24 01:29:38,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [227688569] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:38,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:38,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-24 01:29:38,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758529960] [2022-02-24 01:29:38,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:38,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-24 01:29:38,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:38,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-24 01:29:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1316, Unknown=0, NotChecked=0, Total=1722 [2022-02-24 01:29:38,115 INFO L87 Difference]: Start difference. First operand 197 states and 198 transitions. Second operand has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 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 01:29:39,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:39,111 INFO L93 Difference]: Finished difference Result 284 states and 304 transitions. [2022-02-24 01:29:39,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-24 01:29:39,111 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 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 194 [2022-02-24 01:29:39,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:39,113 INFO L225 Difference]: With dead ends: 284 [2022-02-24 01:29:39,113 INFO L226 Difference]: Without dead ends: 200 [2022-02-24 01:29:39,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1288, Invalid=5192, Unknown=0, NotChecked=0, Total=6480 [2022-02-24 01:29:39,114 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:39,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 116 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:29:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-02-24 01:29:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 199. [2022-02-24 01:29:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 157 states have (on average 1.0127388535031847) internal successors, (159), 158 states have internal predecessors, (159), 21 states have call successors, (21), 21 states have call predecessors, (21), 20 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-24 01:29:39,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 200 transitions. [2022-02-24 01:29:39,153 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 200 transitions. Word has length 194 [2022-02-24 01:29:39,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:39,154 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 200 transitions. [2022-02-24 01:29:39,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.4523809523809526) internal successors, (103), 41 states have internal predecessors, (103), 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 01:29:39,154 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 200 transitions. [2022-02-24 01:29:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-02-24 01:29:39,154 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:39,154 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:39,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-24 01:29:39,155 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:39,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash 488115292, now seen corresponding path program 36 times [2022-02-24 01:29:39,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:39,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890405757] [2022-02-24 01:29:39,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:39,163 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:39,163 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:39,163 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:29:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:29:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:29:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:29:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:29:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:29:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:29:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:29:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:29:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:29:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:39,977 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 01:29:39,977 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:39,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890405757] [2022-02-24 01:29:39,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1890405757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:39,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:39,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 01:29:39,978 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404446569] [2022-02-24 01:29:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:39,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 01:29:39,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:39,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 01:29:39,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1978, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 01:29:39,979 INFO L87 Difference]: Start difference. First operand 199 states and 200 transitions. Second operand has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 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 01:29:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:42,784 INFO L93 Difference]: Finished difference Result 212 states and 213 transitions. [2022-02-24 01:29:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-24 01:29:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 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 196 [2022-02-24 01:29:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:42,785 INFO L225 Difference]: With dead ends: 212 [2022-02-24 01:29:42,785 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 01:29:42,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=317, Invalid=7693, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 01:29:42,787 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 120 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 6358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 6234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:42,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 249 Invalid, 6358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 6234 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 01:29:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 01:29:42,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2022-02-24 01:29:42,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 163 states have (on average 1.0122699386503067) internal successors, (165), 164 states have internal predecessors, (165), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-24 01:29:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 208 transitions. [2022-02-24 01:29:42,838 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 208 transitions. Word has length 196 [2022-02-24 01:29:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:42,839 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 208 transitions. [2022-02-24 01:29:42,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.3333333333333335) internal successors, (105), 44 states have internal predecessors, (105), 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 01:29:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 208 transitions. [2022-02-24 01:29:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-02-24 01:29:42,840 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:42,840 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:42,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-24 01:29:42,840 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:42,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:42,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2001753654, now seen corresponding path program 37 times [2022-02-24 01:29:42,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:42,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678540523] [2022-02-24 01:29:42,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:42,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:42,843 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:42,843 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:42,843 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-02-24 01:29:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:29:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:29:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:29:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:29:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:29:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:29:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:29:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:29:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:29:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:29:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:29:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:29:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:29:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:29:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:29:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:29:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:29:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:29:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:43,443 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 01:29:43,443 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:43,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678540523] [2022-02-24 01:29:43,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [678540523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:43,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:43,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-24 01:29:43,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316288939] [2022-02-24 01:29:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:43,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-24 01:29:43,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:43,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-24 01:29:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=447, Invalid=1445, Unknown=0, NotChecked=0, Total=1892 [2022-02-24 01:29:43,445 INFO L87 Difference]: Start difference. First operand 207 states and 208 transitions. Second operand has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 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 01:29:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:44,439 INFO L93 Difference]: Finished difference Result 298 states and 319 transitions. [2022-02-24 01:29:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-24 01:29:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 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 204 [2022-02-24 01:29:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:44,440 INFO L225 Difference]: With dead ends: 298 [2022-02-24 01:29:44,440 INFO L226 Difference]: Without dead ends: 210 [2022-02-24 01:29:44,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1633 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1415, Invalid=5725, Unknown=0, NotChecked=0, Total=7140 [2022-02-24 01:29:44,442 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 70 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:44,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 108 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:29:44,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-02-24 01:29:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2022-02-24 01:29:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 166 states have internal predecessors, (167), 22 states have call successors, (22), 22 states have call predecessors, (22), 21 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-24 01:29:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 210 transitions. [2022-02-24 01:29:44,489 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 210 transitions. Word has length 204 [2022-02-24 01:29:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:44,490 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 210 transitions. [2022-02-24 01:29:44,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4545454545454546) internal successors, (108), 43 states have internal predecessors, (108), 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 01:29:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 210 transitions. [2022-02-24 01:29:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-02-24 01:29:44,491 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:44,491 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-24 01:29:44,491 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:44,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:44,491 INFO L85 PathProgramCache]: Analyzing trace with hash -731938156, now seen corresponding path program 38 times [2022-02-24 01:29:44,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:44,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173429611] [2022-02-24 01:29:44,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:44,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:44,494 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:44,494 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:44,494 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:29:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:29:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:29:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:29:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:29:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:29:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:29:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:29:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:29:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:29:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:45,325 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 01:29:45,326 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:45,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173429611] [2022-02-24 01:29:45,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1173429611] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:45,326 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:45,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 01:29:45,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817729437] [2022-02-24 01:29:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:45,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 01:29:45,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 01:29:45,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=2160, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 01:29:45,327 INFO L87 Difference]: Start difference. First operand 209 states and 210 transitions. Second operand has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 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 01:29:48,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:48,061 INFO L93 Difference]: Finished difference Result 222 states and 223 transitions. [2022-02-24 01:29:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-24 01:29:48,061 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 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 206 [2022-02-24 01:29:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:48,062 INFO L225 Difference]: With dead ends: 222 [2022-02-24 01:29:48,062 INFO L226 Difference]: Without dead ends: 220 [2022-02-24 01:29:48,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=8411, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 01:29:48,063 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 125 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6616 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 6746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 6616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:48,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 252 Invalid, 6746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 6616 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-24 01:29:48,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-24 01:29:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-02-24 01:29:48,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 172 states have internal predecessors, (173), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-24 01:29:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 218 transitions. [2022-02-24 01:29:48,106 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 218 transitions. Word has length 206 [2022-02-24 01:29:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:48,107 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 218 transitions. [2022-02-24 01:29:48,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.3404255319148937) internal successors, (110), 46 states have internal predecessors, (110), 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 01:29:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 218 transitions. [2022-02-24 01:29:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-02-24 01:29:48,107 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:48,108 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-24 01:29:48,108 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash -239463314, now seen corresponding path program 39 times [2022-02-24 01:29:48,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:48,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1321582410] [2022-02-24 01:29:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:48,110 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:48,110 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:48,110 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-02-24 01:29:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:29:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:29:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:29:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:29:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:29:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:29:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:29:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:29:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:29:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:29:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:29:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:29:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:29:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:29:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:29:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:29:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:29:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:29:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:29:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:48,612 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 01:29:48,612 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:48,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1321582410] [2022-02-24 01:29:48,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1321582410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:48,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:48,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-24 01:29:48,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099772336] [2022-02-24 01:29:48,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:48,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-24 01:29:48,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:48,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-24 01:29:48,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-02-24 01:29:48,614 INFO L87 Difference]: Start difference. First operand 217 states and 218 transitions. Second operand has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 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 01:29:49,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:49,414 INFO L93 Difference]: Finished difference Result 312 states and 334 transitions. [2022-02-24 01:29:49,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-24 01:29:49,414 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 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 214 [2022-02-24 01:29:49,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:49,415 INFO L225 Difference]: With dead ends: 312 [2022-02-24 01:29:49,415 INFO L226 Difference]: Without dead ends: 220 [2022-02-24 01:29:49,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1799 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1548, Invalid=6284, Unknown=0, NotChecked=0, Total=7832 [2022-02-24 01:29:49,416 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 72 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:49,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 80 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-24 01:29:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-24 01:29:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 219. [2022-02-24 01:29:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 173 states have (on average 1.0115606936416186) internal successors, (175), 174 states have internal predecessors, (175), 23 states have call successors, (23), 23 states have call predecessors, (23), 22 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-24 01:29:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 220 transitions. [2022-02-24 01:29:49,458 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 220 transitions. Word has length 214 [2022-02-24 01:29:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:49,458 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 220 transitions. [2022-02-24 01:29:49,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 45 states have internal predecessors, (113), 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 01:29:49,458 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 220 transitions. [2022-02-24 01:29:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-02-24 01:29:49,459 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:49,459 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:49,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-24 01:29:49,459 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:49,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:49,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2101615796, now seen corresponding path program 40 times [2022-02-24 01:29:49,460 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:49,460 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680775970] [2022-02-24 01:29:49,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:49,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:49,462 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:49,462 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:49,462 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:29:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:29:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:29:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:29:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:29:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:29:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:29:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:29:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:29:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:29:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:50,251 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 01:29:50,251 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:50,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680775970] [2022-02-24 01:29:50,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [680775970] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:50,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:50,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 01:29:50,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221453992] [2022-02-24 01:29:50,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:50,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 01:29:50,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:50,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 01:29:50,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=2350, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 01:29:50,254 INFO L87 Difference]: Start difference. First operand 219 states and 220 transitions. Second operand has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 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 01:29:54,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:54,284 INFO L93 Difference]: Finished difference Result 232 states and 233 transitions. [2022-02-24 01:29:54,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-24 01:29:54,284 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 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 216 [2022-02-24 01:29:54,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:54,286 INFO L225 Difference]: With dead ends: 232 [2022-02-24 01:29:54,286 INFO L226 Difference]: Without dead ends: 230 [2022-02-24 01:29:54,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=345, Invalid=9161, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 01:29:54,287 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 130 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 7239 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 7375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 7239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:54,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 263 Invalid, 7375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 7239 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-24 01:29:54,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-24 01:29:54,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227. [2022-02-24 01:29:54,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.011173184357542) internal successors, (181), 180 states have internal predecessors, (181), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-24 01:29:54,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 228 transitions. [2022-02-24 01:29:54,330 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 228 transitions. Word has length 216 [2022-02-24 01:29:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:54,330 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 228 transitions. [2022-02-24 01:29:54,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.3469387755102042) internal successors, (115), 48 states have internal predecessors, (115), 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 01:29:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 228 transitions. [2022-02-24 01:29:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-02-24 01:29:54,331 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:54,331 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:54,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-24 01:29:54,332 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:54,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:54,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1092207322, now seen corresponding path program 41 times [2022-02-24 01:29:54,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:54,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1097027329] [2022-02-24 01:29:54,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:54,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:54,334 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:54,334 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:54,334 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-02-24 01:29:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:29:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:29:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:29:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:29:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:29:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:29:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:29:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:29:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:29:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:29:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:29:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:29:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:29:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:29:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:29:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:29:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:29:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:29:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:29:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:29:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:54,877 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 01:29:54,878 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:54,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1097027329] [2022-02-24 01:29:54,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1097027329] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:54,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:54,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-24 01:29:54,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393711638] [2022-02-24 01:29:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:54,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-24 01:29:54,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:54,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-24 01:29:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=1721, Unknown=0, NotChecked=0, Total=2256 [2022-02-24 01:29:54,879 INFO L87 Difference]: Start difference. First operand 227 states and 228 transitions. Second operand has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 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 01:29:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:29:56,074 INFO L93 Difference]: Finished difference Result 326 states and 349 transitions. [2022-02-24 01:29:56,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-24 01:29:56,075 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 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 224 [2022-02-24 01:29:56,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:29:56,076 INFO L225 Difference]: With dead ends: 326 [2022-02-24 01:29:56,076 INFO L226 Difference]: Without dead ends: 230 [2022-02-24 01:29:56,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1973 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1687, Invalid=6869, Unknown=0, NotChecked=0, Total=8556 [2022-02-24 01:29:56,077 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 74 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:29:56,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 107 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:29:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-24 01:29:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2022-02-24 01:29:56,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.011049723756906) internal successors, (183), 182 states have internal predecessors, (183), 24 states have call successors, (24), 24 states have call predecessors, (24), 23 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-24 01:29:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 230 transitions. [2022-02-24 01:29:56,118 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 230 transitions. Word has length 224 [2022-02-24 01:29:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:29:56,120 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 230 transitions. [2022-02-24 01:29:56,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.4583333333333335) internal successors, (118), 47 states have internal predecessors, (118), 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 01:29:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 230 transitions. [2022-02-24 01:29:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-02-24 01:29:56,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:29:56,121 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:29:56,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-24 01:29:56,121 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:29:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:29:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash -388919676, now seen corresponding path program 42 times [2022-02-24 01:29:56,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:29:56,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083765020] [2022-02-24 01:29:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:29:56,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:29:56,125 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:29:56,125 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:29:56,125 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:29:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:29:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:29:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:29:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:29:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:29:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:29:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:29:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:29:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:29:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:29:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:29:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:29:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:29:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:29:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:29:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:29:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:29:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:29:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:29:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:29:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:29:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:29:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:29:57,320 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 01:29:57,320 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:29:57,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083765020] [2022-02-24 01:29:57,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1083765020] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:29:57,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:29:57,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 01:29:57,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336602536] [2022-02-24 01:29:57,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:29:57,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 01:29:57,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:29:57,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 01:29:57,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=2548, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 01:29:57,321 INFO L87 Difference]: Start difference. First operand 229 states and 230 transitions. Second operand has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 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 01:30:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:00,756 INFO L93 Difference]: Finished difference Result 242 states and 243 transitions. [2022-02-24 01:30:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-24 01:30:00,757 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 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 226 [2022-02-24 01:30:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:00,758 INFO L225 Difference]: With dead ends: 242 [2022-02-24 01:30:00,758 INFO L226 Difference]: Without dead ends: 240 [2022-02-24 01:30:00,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=359, Invalid=9943, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 01:30:00,759 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 135 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 7890 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 8032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 7890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:00,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 274 Invalid, 8032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 7890 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-24 01:30:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-24 01:30:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 237. [2022-02-24 01:30:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 187 states have (on average 1.0106951871657754) internal successors, (189), 188 states have internal predecessors, (189), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-24 01:30:00,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 238 transitions. [2022-02-24 01:30:00,814 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 238 transitions. Word has length 226 [2022-02-24 01:30:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:00,815 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 238 transitions. [2022-02-24 01:30:00,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 50 states have internal predecessors, (120), 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 01:30:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 238 transitions. [2022-02-24 01:30:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-02-24 01:30:00,816 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:00,816 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:00,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-24 01:30:00,817 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:00,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1696149598, now seen corresponding path program 43 times [2022-02-24 01:30:00,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:00,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025940110] [2022-02-24 01:30:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:00,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:00,823 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:00,823 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:00,823 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-02-24 01:30:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:30:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:30:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:30:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:30:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:30:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:30:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:30:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:30:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:30:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:30:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:30:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:30:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:30:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:30:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:30:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:30:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:30:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:30:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:30:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:30:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:30:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:01,509 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 01:30:01,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:01,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025940110] [2022-02-24 01:30:01,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1025940110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:01,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:01,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-24 01:30:01,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444579453] [2022-02-24 01:30:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:01,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-24 01:30:01,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-24 01:30:01,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=582, Invalid=1868, Unknown=0, NotChecked=0, Total=2450 [2022-02-24 01:30:01,511 INFO L87 Difference]: Start difference. First operand 237 states and 238 transitions. Second operand has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 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 01:30:02,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:02,875 INFO L93 Difference]: Finished difference Result 340 states and 364 transitions. [2022-02-24 01:30:02,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-24 01:30:02,876 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 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 234 [2022-02-24 01:30:02,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:02,877 INFO L225 Difference]: With dead ends: 340 [2022-02-24 01:30:02,877 INFO L226 Difference]: Without dead ends: 240 [2022-02-24 01:30:02,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2155 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1832, Invalid=7480, Unknown=0, NotChecked=0, Total=9312 [2022-02-24 01:30:02,878 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 76 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1185 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:02,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 99 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:30:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-02-24 01:30:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-02-24 01:30:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 190 states have internal predecessors, (191), 25 states have call successors, (25), 25 states have call predecessors, (25), 24 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-24 01:30:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 240 transitions. [2022-02-24 01:30:02,933 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 240 transitions. Word has length 234 [2022-02-24 01:30:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:02,933 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 240 transitions. [2022-02-24 01:30:02,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.46) internal successors, (123), 49 states have internal predecessors, (123), 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 01:30:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 240 transitions. [2022-02-24 01:30:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-02-24 01:30:02,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:02,934 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:02,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-24 01:30:02,934 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:02,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:02,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1842144316, now seen corresponding path program 44 times [2022-02-24 01:30:02,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:02,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352256229] [2022-02-24 01:30:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:02,937 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:02,937 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:02,937 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:30:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:30:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:30:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:30:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:30:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:30:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:30:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:30:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:30:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:30:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:30:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:30:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:30:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:30:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:30:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:30:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:30:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:30:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:30:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:30:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:30:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:30:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:04,161 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 01:30:04,161 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:04,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352256229] [2022-02-24 01:30:04,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [352256229] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:04,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:04,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 01:30:04,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136101427] [2022-02-24 01:30:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:04,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 01:30:04,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:04,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 01:30:04,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2754, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 01:30:04,163 INFO L87 Difference]: Start difference. First operand 239 states and 240 transitions. Second operand has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 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 01:30:07,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:07,439 INFO L93 Difference]: Finished difference Result 252 states and 253 transitions. [2022-02-24 01:30:07,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-24 01:30:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 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 236 [2022-02-24 01:30:07,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:07,464 INFO L225 Difference]: With dead ends: 252 [2022-02-24 01:30:07,464 INFO L226 Difference]: Without dead ends: 250 [2022-02-24 01:30:07,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1455 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=373, Invalid=10757, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 01:30:07,466 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 140 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 8569 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 8717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 8569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:07,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 285 Invalid, 8717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 8569 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-24 01:30:07,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-24 01:30:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2022-02-24 01:30:07,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-24 01:30:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2022-02-24 01:30:07,515 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 236 [2022-02-24 01:30:07,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:07,515 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2022-02-24 01:30:07,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 2.358490566037736) internal successors, (125), 52 states have internal predecessors, (125), 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 01:30:07,515 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2022-02-24 01:30:07,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-02-24 01:30:07,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:07,516 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:07,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-24 01:30:07,517 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:07,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:07,517 INFO L85 PathProgramCache]: Analyzing trace with hash 153046550, now seen corresponding path program 45 times [2022-02-24 01:30:07,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:07,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563294374] [2022-02-24 01:30:07,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:07,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:07,520 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:07,520 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:07,520 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-02-24 01:30:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:30:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:30:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:30:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:30:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:30:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:30:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:30:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:30:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:30:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:30:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:30:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:30:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:30:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:30:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:30:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:30:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:30:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:30:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:30:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:30:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:30:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:30:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:08,206 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 01:30:08,207 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:08,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563294374] [2022-02-24 01:30:08,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [563294374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:08,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:08,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-24 01:30:08,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650060322] [2022-02-24 01:30:08,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:08,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-24 01:30:08,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:08,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-24 01:30:08,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=631, Invalid=2021, Unknown=0, NotChecked=0, Total=2652 [2022-02-24 01:30:08,208 INFO L87 Difference]: Start difference. First operand 247 states and 248 transitions. Second operand has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 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 01:30:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:09,474 INFO L93 Difference]: Finished difference Result 354 states and 379 transitions. [2022-02-24 01:30:09,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-24 01:30:09,474 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 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 244 [2022-02-24 01:30:09,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:09,475 INFO L225 Difference]: With dead ends: 354 [2022-02-24 01:30:09,476 INFO L226 Difference]: Without dead ends: 250 [2022-02-24 01:30:09,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2345 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1983, Invalid=8117, Unknown=0, NotChecked=0, Total=10100 [2022-02-24 01:30:09,477 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 78 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:09,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 96 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:30:09,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-02-24 01:30:09,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2022-02-24 01:30:09,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 197 states have (on average 1.0101522842639594) internal successors, (199), 198 states have internal predecessors, (199), 26 states have call successors, (26), 26 states have call predecessors, (26), 25 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-24 01:30:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2022-02-24 01:30:09,544 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 244 [2022-02-24 01:30:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:09,545 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2022-02-24 01:30:09,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.4615384615384617) internal successors, (128), 51 states have internal predecessors, (128), 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 01:30:09,545 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2022-02-24 01:30:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-02-24 01:30:09,546 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:09,546 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:09,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-24 01:30:09,546 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash 358761588, now seen corresponding path program 46 times [2022-02-24 01:30:09,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:09,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76830975] [2022-02-24 01:30:09,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:09,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:09,549 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:09,549 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:09,549 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:30:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:30:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:30:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:30:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:30:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:30:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:30:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:30:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:30:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:30:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:30:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:30:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:30:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:30:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:30:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:30:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:30:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:30:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:30:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:30:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:30:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:30:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:30:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:10,808 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 01:30:10,809 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:10,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76830975] [2022-02-24 01:30:10,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [76830975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:10,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:10,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 01:30:10,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819234522] [2022-02-24 01:30:10,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:10,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 01:30:10,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:10,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 01:30:10,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=2968, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 01:30:10,810 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 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 01:30:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:14,647 INFO L93 Difference]: Finished difference Result 262 states and 263 transitions. [2022-02-24 01:30:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-24 01:30:14,648 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 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 246 [2022-02-24 01:30:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:14,649 INFO L225 Difference]: With dead ends: 262 [2022-02-24 01:30:14,649 INFO L226 Difference]: Without dead ends: 260 [2022-02-24 01:30:14,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=387, Invalid=11603, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 01:30:14,650 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 145 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 9276 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 9430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 9276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:14,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 296 Invalid, 9430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 9276 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-24 01:30:14,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-24 01:30:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 257. [2022-02-24 01:30:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 203 states have (on average 1.0098522167487685) internal successors, (205), 204 states have internal predecessors, (205), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-24 01:30:14,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 258 transitions. [2022-02-24 01:30:14,703 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 258 transitions. Word has length 246 [2022-02-24 01:30:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:14,703 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 258 transitions. [2022-02-24 01:30:14,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 2.3636363636363638) internal successors, (130), 54 states have internal predecessors, (130), 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 01:30:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 258 transitions. [2022-02-24 01:30:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-02-24 01:30:14,704 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:14,704 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:14,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-24 01:30:14,704 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:14,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1682765390, now seen corresponding path program 47 times [2022-02-24 01:30:14,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:14,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67186929] [2022-02-24 01:30:14,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:14,707 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:14,707 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:14,707 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-02-24 01:30:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:30:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:30:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:30:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:30:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:30:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:30:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:30:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:30:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:30:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:30:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:30:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:30:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:30:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:30:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:30:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:30:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:30:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:30:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:30:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:30:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:30:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:30:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:30:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:15,538 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 01:30:15,539 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:15,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67186929] [2022-02-24 01:30:15,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [67186929] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:15,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:15,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-24 01:30:15,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233915351] [2022-02-24 01:30:15,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:15,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-24 01:30:15,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-24 01:30:15,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=682, Invalid=2180, Unknown=0, NotChecked=0, Total=2862 [2022-02-24 01:30:15,540 INFO L87 Difference]: Start difference. First operand 257 states and 258 transitions. Second operand has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 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 01:30:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:17,131 INFO L93 Difference]: Finished difference Result 368 states and 394 transitions. [2022-02-24 01:30:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-24 01:30:17,131 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 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 254 [2022-02-24 01:30:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:17,133 INFO L225 Difference]: With dead ends: 368 [2022-02-24 01:30:17,133 INFO L226 Difference]: Without dead ends: 260 [2022-02-24 01:30:17,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2140, Invalid=8780, Unknown=0, NotChecked=0, Total=10920 [2022-02-24 01:30:17,134 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 80 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:17,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 118 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:30:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-02-24 01:30:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 259. [2022-02-24 01:30:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 205 states have (on average 1.0097560975609756) internal successors, (207), 206 states have internal predecessors, (207), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-24 01:30:17,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 260 transitions. [2022-02-24 01:30:17,205 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 260 transitions. Word has length 254 [2022-02-24 01:30:17,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:17,205 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 260 transitions. [2022-02-24 01:30:17,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.462962962962963) internal successors, (133), 53 states have internal predecessors, (133), 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 01:30:17,205 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 260 transitions. [2022-02-24 01:30:17,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-02-24 01:30:17,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:17,206 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:17,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-24 01:30:17,208 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:17,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:17,209 INFO L85 PathProgramCache]: Analyzing trace with hash -171045076, now seen corresponding path program 48 times [2022-02-24 01:30:17,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:17,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146888998] [2022-02-24 01:30:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:17,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:17,213 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:17,213 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:17,213 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:30:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:30:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:30:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:30:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:30:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:30:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:30:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:30:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:30:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:30:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:30:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:30:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:30:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:30:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:30:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:30:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:30:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:30:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:30:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:30:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:30:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:30:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:30:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:30:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:18,560 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 01:30:18,561 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:18,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146888998] [2022-02-24 01:30:18,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [146888998] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:18,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:18,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 01:30:18,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442470888] [2022-02-24 01:30:18,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:18,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 01:30:18,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:18,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 01:30:18,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=3190, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 01:30:18,562 INFO L87 Difference]: Start difference. First operand 259 states and 260 transitions. Second operand has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 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 01:30:22,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:22,550 INFO L93 Difference]: Finished difference Result 272 states and 273 transitions. [2022-02-24 01:30:22,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-24 01:30:22,550 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 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 256 [2022-02-24 01:30:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:22,551 INFO L225 Difference]: With dead ends: 272 [2022-02-24 01:30:22,551 INFO L226 Difference]: Without dead ends: 270 [2022-02-24 01:30:22,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1679 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=401, Invalid=12481, Unknown=0, NotChecked=0, Total=12882 [2022-02-24 01:30:22,553 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 150 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 10096 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 10256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 10096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:22,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 311 Invalid, 10256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 10096 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-24 01:30:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-24 01:30:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 267. [2022-02-24 01:30:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 211 states have (on average 1.009478672985782) internal successors, (213), 212 states have internal predecessors, (213), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-24 01:30:22,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 268 transitions. [2022-02-24 01:30:22,625 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 268 transitions. Word has length 256 [2022-02-24 01:30:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:22,625 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 268 transitions. [2022-02-24 01:30:22,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 2.3684210526315788) internal successors, (135), 56 states have internal predecessors, (135), 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 01:30:22,626 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 268 transitions. [2022-02-24 01:30:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-02-24 01:30:22,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:22,627 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:22,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-24 01:30:22,627 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:22,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:22,627 INFO L85 PathProgramCache]: Analyzing trace with hash 981371142, now seen corresponding path program 49 times [2022-02-24 01:30:22,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:22,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777696583] [2022-02-24 01:30:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:22,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:22,631 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:22,631 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:22,631 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-02-24 01:30:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:30:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:30:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:30:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:30:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:30:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:30:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:30:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:30:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:30:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:30:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:30:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:30:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:30:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:30:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:30:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:30:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:30:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:30:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:30:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:30:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:30:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:30:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:30:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:30:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:23,602 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 01:30:23,602 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:23,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777696583] [2022-02-24 01:30:23,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [777696583] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:23,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:23,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-24 01:30:23,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587425775] [2022-02-24 01:30:23,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:23,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-24 01:30:23,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:23,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-24 01:30:23,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=2345, Unknown=0, NotChecked=0, Total=3080 [2022-02-24 01:30:23,604 INFO L87 Difference]: Start difference. First operand 267 states and 268 transitions. Second operand has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 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 01:30:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:24,985 INFO L93 Difference]: Finished difference Result 382 states and 409 transitions. [2022-02-24 01:30:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-24 01:30:24,986 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 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 264 [2022-02-24 01:30:24,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:24,987 INFO L225 Difference]: With dead ends: 382 [2022-02-24 01:30:24,988 INFO L226 Difference]: Without dead ends: 270 [2022-02-24 01:30:24,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2749 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2303, Invalid=9469, Unknown=0, NotChecked=0, Total=11772 [2022-02-24 01:30:24,989 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:24,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 115 Invalid, 1504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:30:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-02-24 01:30:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 269. [2022-02-24 01:30:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 28 states have call successors, (28), 28 states have call predecessors, (28), 27 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-24 01:30:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 270 transitions. [2022-02-24 01:30:25,076 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 270 transitions. Word has length 264 [2022-02-24 01:30:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:25,076 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 270 transitions. [2022-02-24 01:30:25,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.4642857142857144) internal successors, (138), 55 states have internal predecessors, (138), 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 01:30:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 270 transitions. [2022-02-24 01:30:25,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-02-24 01:30:25,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:25,078 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:25,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-24 01:30:25,079 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash 768910436, now seen corresponding path program 50 times [2022-02-24 01:30:25,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:25,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40280573] [2022-02-24 01:30:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:25,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:25,083 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:25,083 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:25,084 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:30:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:30:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:30:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:30:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:30:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:30:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:30:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:30:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:30:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:30:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:30:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:30:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:30:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:30:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:30:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:30:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:30:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:30:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:30:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:30:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:30:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:30:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:30:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:30:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:30:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:26,296 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 01:30:26,296 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:26,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40280573] [2022-02-24 01:30:26,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [40280573] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:26,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:26,297 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 01:30:26,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423182010] [2022-02-24 01:30:26,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:26,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 01:30:26,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:26,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 01:30:26,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=3420, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 01:30:26,298 INFO L87 Difference]: Start difference. First operand 269 states and 270 transitions. Second operand has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 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 01:30:30,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:30,652 INFO L93 Difference]: Finished difference Result 282 states and 283 transitions. [2022-02-24 01:30:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-24 01:30:30,653 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 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 266 [2022-02-24 01:30:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:30,654 INFO L225 Difference]: With dead ends: 282 [2022-02-24 01:30:30,654 INFO L226 Difference]: Without dead ends: 280 [2022-02-24 01:30:30,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1797 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=415, Invalid=13391, Unknown=0, NotChecked=0, Total=13806 [2022-02-24 01:30:30,656 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 155 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 10883 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 11049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 10883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:30,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 318 Invalid, 11049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 10883 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 01:30:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-24 01:30:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 277. [2022-02-24 01:30:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 220 states have internal predecessors, (221), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-24 01:30:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 278 transitions. [2022-02-24 01:30:30,728 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 278 transitions. Word has length 266 [2022-02-24 01:30:30,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:30,728 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 278 transitions. [2022-02-24 01:30:30,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 2.3728813559322033) internal successors, (140), 58 states have internal predecessors, (140), 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 01:30:30,729 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 278 transitions. [2022-02-24 01:30:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-02-24 01:30:30,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:30,730 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:30,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-24 01:30:30,730 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:30,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:30,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1343776318, now seen corresponding path program 51 times [2022-02-24 01:30:30,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:30,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604558704] [2022-02-24 01:30:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:30,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:30,734 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:30,734 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:30,734 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-02-24 01:30:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:30:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:30:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:30:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:30:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:30:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:30:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:30:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:30:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:30:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:30:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:30:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:30:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:30:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:30:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:30:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:30:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:30:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:30:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:30:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:30:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:30:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:30:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:30:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:30:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:30:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:31,643 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 01:30:31,644 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:31,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604558704] [2022-02-24 01:30:31,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [604558704] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:31,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:31,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-24 01:30:31,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863858175] [2022-02-24 01:30:31,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:31,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-24 01:30:31,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:31,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-24 01:30:31,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=2516, Unknown=0, NotChecked=0, Total=3306 [2022-02-24 01:30:31,645 INFO L87 Difference]: Start difference. First operand 277 states and 278 transitions. Second operand has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 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 01:30:33,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:33,237 INFO L93 Difference]: Finished difference Result 396 states and 424 transitions. [2022-02-24 01:30:33,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-24 01:30:33,247 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 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 274 [2022-02-24 01:30:33,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:33,248 INFO L225 Difference]: With dead ends: 396 [2022-02-24 01:30:33,249 INFO L226 Difference]: Without dead ends: 280 [2022-02-24 01:30:33,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2472, Invalid=10184, Unknown=0, NotChecked=0, Total=12656 [2022-02-24 01:30:33,250 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 84 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:33,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 97 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:30:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-24 01:30:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2022-02-24 01:30:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 221 states have (on average 1.009049773755656) internal successors, (223), 222 states have internal predecessors, (223), 29 states have call successors, (29), 29 states have call predecessors, (29), 28 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-24 01:30:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 280 transitions. [2022-02-24 01:30:33,318 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 280 transitions. Word has length 274 [2022-02-24 01:30:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:33,319 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 280 transitions. [2022-02-24 01:30:33,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.4655172413793105) internal successors, (143), 57 states have internal predecessors, (143), 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 01:30:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 280 transitions. [2022-02-24 01:30:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-02-24 01:30:33,320 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:33,320 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:33,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-24 01:30:33,320 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:33,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:33,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1522689052, now seen corresponding path program 52 times [2022-02-24 01:30:33,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:33,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178846558] [2022-02-24 01:30:33,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:33,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:33,324 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:33,324 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:33,324 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:30:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:30:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:30:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:30:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:30:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:30:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:30:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:30:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:30:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:30:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:30:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:30:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:30:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:30:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:30:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:30:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:30:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:30:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:30:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:30:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:30:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:30:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:30:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:30:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:30:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:30:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:34,442 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 01:30:34,442 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:34,442 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178846558] [2022-02-24 01:30:34,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [178846558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:34,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:34,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 01:30:34,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814882652] [2022-02-24 01:30:34,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:34,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 01:30:34,443 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:34,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 01:30:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=3658, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 01:30:34,444 INFO L87 Difference]: Start difference. First operand 279 states and 280 transitions. Second operand has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 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 01:30:38,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:38,645 INFO L93 Difference]: Finished difference Result 292 states and 293 transitions. [2022-02-24 01:30:38,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-24 01:30:38,645 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 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 276 [2022-02-24 01:30:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:38,646 INFO L225 Difference]: With dead ends: 292 [2022-02-24 01:30:38,646 INFO L226 Difference]: Without dead ends: 290 [2022-02-24 01:30:38,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1919 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=429, Invalid=14333, Unknown=0, NotChecked=0, Total=14762 [2022-02-24 01:30:38,647 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 160 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 11768 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 11768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:38,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 333 Invalid, 11940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 11768 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-24 01:30:38,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-24 01:30:38,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 287. [2022-02-24 01:30:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 228 states have internal predecessors, (229), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-24 01:30:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 288 transitions. [2022-02-24 01:30:38,758 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 288 transitions. Word has length 276 [2022-02-24 01:30:38,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:38,758 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 288 transitions. [2022-02-24 01:30:38,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.377049180327869) internal successors, (145), 60 states have internal predecessors, (145), 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 01:30:38,758 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 288 transitions. [2022-02-24 01:30:38,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-02-24 01:30:38,759 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:38,760 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:38,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-24 01:30:38,760 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:38,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash -536416778, now seen corresponding path program 53 times [2022-02-24 01:30:38,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:38,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168555094] [2022-02-24 01:30:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:38,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:38,763 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:38,763 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:38,763 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-02-24 01:30:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:30:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:30:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:30:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:30:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:30:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:30:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:30:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:30:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:30:39,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:30:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:30:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:30:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:30:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:30:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:30:39,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:30:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:30:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:30:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:30:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:30:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:30:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:30:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:30:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:30:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:30:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:30:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:39,717 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 01:30:39,717 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:39,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168555094] [2022-02-24 01:30:39,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1168555094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:39,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:39,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-24 01:30:39,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74365736] [2022-02-24 01:30:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:39,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-24 01:30:39,718 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-24 01:30:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=847, Invalid=2693, Unknown=0, NotChecked=0, Total=3540 [2022-02-24 01:30:39,719 INFO L87 Difference]: Start difference. First operand 287 states and 288 transitions. Second operand has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 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 01:30:41,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:41,000 INFO L93 Difference]: Finished difference Result 410 states and 439 transitions. [2022-02-24 01:30:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-24 01:30:41,001 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 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 284 [2022-02-24 01:30:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:41,002 INFO L225 Difference]: With dead ends: 410 [2022-02-24 01:30:41,002 INFO L226 Difference]: Without dead ends: 290 [2022-02-24 01:30:41,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3185 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2647, Invalid=10925, Unknown=0, NotChecked=0, Total=13572 [2022-02-24 01:30:41,003 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 86 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:41,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 99 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:30:41,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-24 01:30:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 289. [2022-02-24 01:30:41,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 229 states have (on average 1.0087336244541485) internal successors, (231), 230 states have internal predecessors, (231), 30 states have call successors, (30), 30 states have call predecessors, (30), 29 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-24 01:30:41,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 290 transitions. [2022-02-24 01:30:41,089 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 290 transitions. Word has length 284 [2022-02-24 01:30:41,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:41,090 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 290 transitions. [2022-02-24 01:30:41,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.466666666666667) internal successors, (148), 59 states have internal predecessors, (148), 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 01:30:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 290 transitions. [2022-02-24 01:30:41,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-02-24 01:30:41,091 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:41,091 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:41,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-24 01:30:41,092 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:41,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:41,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1905545644, now seen corresponding path program 54 times [2022-02-24 01:30:41,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:41,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028176141] [2022-02-24 01:30:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:41,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:41,096 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:41,096 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:41,096 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:30:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:30:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:30:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:30:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:30:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:30:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:30:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:30:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:30:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:30:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:30:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:30:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:30:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:30:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:30:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:30:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:30:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:30:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:30:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:30:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:30:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:30:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:30:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:30:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:30:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:30:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:30:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:42,553 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 01:30:42,553 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:42,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028176141] [2022-02-24 01:30:42,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2028176141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:42,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:42,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 01:30:42,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462915639] [2022-02-24 01:30:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:42,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 01:30:42,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:42,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 01:30:42,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=3904, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 01:30:42,555 INFO L87 Difference]: Start difference. First operand 289 states and 290 transitions. Second operand has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 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 01:30:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:47,383 INFO L93 Difference]: Finished difference Result 302 states and 303 transitions. [2022-02-24 01:30:47,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-24 01:30:47,384 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 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 286 [2022-02-24 01:30:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:47,385 INFO L225 Difference]: With dead ends: 302 [2022-02-24 01:30:47,385 INFO L226 Difference]: Without dead ends: 300 [2022-02-24 01:30:47,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2045 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=443, Invalid=15307, Unknown=0, NotChecked=0, Total=15750 [2022-02-24 01:30:47,387 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 165 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 12594 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 12772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 12594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:47,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 344 Invalid, 12772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 12594 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-24 01:30:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-24 01:30:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 297. [2022-02-24 01:30:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 235 states have (on average 1.0085106382978724) internal successors, (237), 236 states have internal predecessors, (237), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-24 01:30:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 298 transitions. [2022-02-24 01:30:47,470 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 298 transitions. Word has length 286 [2022-02-24 01:30:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:47,470 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 298 transitions. [2022-02-24 01:30:47,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.380952380952381) internal successors, (150), 62 states have internal predecessors, (150), 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 01:30:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 298 transitions. [2022-02-24 01:30:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-02-24 01:30:47,472 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:47,472 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:47,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-24 01:30:47,472 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1849786322, now seen corresponding path program 55 times [2022-02-24 01:30:47,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:47,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463465805] [2022-02-24 01:30:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:47,476 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:47,476 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:47,476 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-02-24 01:30:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:30:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:30:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:30:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:30:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:30:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:30:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:30:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:30:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:30:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:30:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:30:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:30:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:30:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:30:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:30:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:30:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:30:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:30:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:30:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:30:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:30:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:30:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:30:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:30:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:30:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:30:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:30:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:48,452 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 01:30:48,452 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:48,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463465805] [2022-02-24 01:30:48,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [463465805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:48,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:48,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-24 01:30:48,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602164974] [2022-02-24 01:30:48,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:48,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-24 01:30:48,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:48,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-24 01:30:48,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=2876, Unknown=0, NotChecked=0, Total=3782 [2022-02-24 01:30:48,461 INFO L87 Difference]: Start difference. First operand 297 states and 298 transitions. Second operand has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 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 01:30:49,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:49,891 INFO L93 Difference]: Finished difference Result 424 states and 454 transitions. [2022-02-24 01:30:49,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-24 01:30:49,891 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 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 294 [2022-02-24 01:30:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:49,893 INFO L225 Difference]: With dead ends: 424 [2022-02-24 01:30:49,893 INFO L226 Difference]: Without dead ends: 300 [2022-02-24 01:30:49,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2828, Invalid=11692, Unknown=0, NotChecked=0, Total=14520 [2022-02-24 01:30:49,894 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 88 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:49,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 116 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:30:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-02-24 01:30:49,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2022-02-24 01:30:50,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 31 states have call successors, (31), 31 states have call predecessors, (31), 30 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-24 01:30:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 300 transitions. [2022-02-24 01:30:50,001 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 300 transitions. Word has length 294 [2022-02-24 01:30:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:50,002 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 300 transitions. [2022-02-24 01:30:50,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.467741935483871) internal successors, (153), 61 states have internal predecessors, (153), 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 01:30:50,002 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 300 transitions. [2022-02-24 01:30:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-24 01:30:50,003 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:50,004 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:50,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-24 01:30:50,004 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:50,004 INFO L85 PathProgramCache]: Analyzing trace with hash -986914036, now seen corresponding path program 56 times [2022-02-24 01:30:50,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:50,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620669122] [2022-02-24 01:30:50,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:50,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:50,008 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:50,008 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:50,008 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:30:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:30:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:30:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:30:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:30:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:30:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:30:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:30:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:30:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:30:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:30:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:30:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:30:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:30:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:30:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:30:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:30:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:30:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:30:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:30:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:30:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:30:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:30:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:30:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:30:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:30:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:30:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:30:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:51,351 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 01:30:51,351 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:51,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620669122] [2022-02-24 01:30:51,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1620669122] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:51,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:51,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 01:30:51,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000753724] [2022-02-24 01:30:51,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:51,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 01:30:51,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:51,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 01:30:51,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=4158, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 01:30:51,352 INFO L87 Difference]: Start difference. First operand 299 states and 300 transitions. Second operand has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 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 01:30:56,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:56,851 INFO L93 Difference]: Finished difference Result 312 states and 313 transitions. [2022-02-24 01:30:56,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-24 01:30:56,852 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 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 296 [2022-02-24 01:30:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:56,855 INFO L225 Difference]: With dead ends: 312 [2022-02-24 01:30:56,855 INFO L226 Difference]: Without dead ends: 310 [2022-02-24 01:30:56,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2175 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=457, Invalid=16313, Unknown=0, NotChecked=0, Total=16770 [2022-02-24 01:30:56,857 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 13327 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 13511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 13327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:56,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 355 Invalid, 13511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 13327 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-24 01:30:56,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-24 01:30:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2022-02-24 01:30:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 243 states have (on average 1.008230452674897) internal successors, (245), 244 states have internal predecessors, (245), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-24 01:30:56,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 308 transitions. [2022-02-24 01:30:56,947 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 308 transitions. Word has length 296 [2022-02-24 01:30:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:56,948 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 308 transitions. [2022-02-24 01:30:56,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 2.3846153846153846) internal successors, (155), 64 states have internal predecessors, (155), 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 01:30:56,948 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 308 transitions. [2022-02-24 01:30:56,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-02-24 01:30:56,949 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:56,949 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:56,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-24 01:30:56,950 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:56,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:56,950 INFO L85 PathProgramCache]: Analyzing trace with hash -281314074, now seen corresponding path program 57 times [2022-02-24 01:30:56,950 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:56,950 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177712722] [2022-02-24 01:30:56,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:56,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:56,954 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:56,954 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:56,954 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:30:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-02-24 01:30:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:30:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:30:57,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:30:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:30:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:30:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:30:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:30:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:30:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:30:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:30:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:30:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:30:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:30:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:30:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:30:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:30:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:30:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:30:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:30:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:30:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:30:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:30:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:30:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:30:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:30:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:30:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:30:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:30:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:30:57,833 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 01:30:57,833 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:30:57,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177712722] [2022-02-24 01:30:57,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1177712722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:30:57,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:30:57,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-24 01:30:57,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258589457] [2022-02-24 01:30:57,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:30:57,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-24 01:30:57,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:30:57,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-24 01:30:57,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2022-02-24 01:30:57,835 INFO L87 Difference]: Start difference. First operand 307 states and 308 transitions. Second operand has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 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 01:30:59,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:30:59,542 INFO L93 Difference]: Finished difference Result 438 states and 469 transitions. [2022-02-24 01:30:59,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-24 01:30:59,543 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 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 304 [2022-02-24 01:30:59,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:30:59,544 INFO L225 Difference]: With dead ends: 438 [2022-02-24 01:30:59,544 INFO L226 Difference]: Without dead ends: 310 [2022-02-24 01:30:59,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3653 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3015, Invalid=12485, Unknown=0, NotChecked=0, Total=15500 [2022-02-24 01:30:59,545 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 90 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:30:59,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 133 Invalid, 1870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:30:59,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-02-24 01:30:59,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 309. [2022-02-24 01:30:59,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 245 states have (on average 1.0081632653061225) internal successors, (247), 246 states have internal predecessors, (247), 32 states have call successors, (32), 32 states have call predecessors, (32), 31 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-24 01:30:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 310 transitions. [2022-02-24 01:30:59,619 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 310 transitions. Word has length 304 [2022-02-24 01:30:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:30:59,619 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 310 transitions. [2022-02-24 01:30:59,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.46875) internal successors, (158), 63 states have internal predecessors, (158), 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 01:30:59,619 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 310 transitions. [2022-02-24 01:30:59,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-02-24 01:30:59,620 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:30:59,620 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:30:59,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-24 01:30:59,620 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:30:59,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:30:59,621 INFO L85 PathProgramCache]: Analyzing trace with hash -605396412, now seen corresponding path program 58 times [2022-02-24 01:30:59,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:30:59,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195920026] [2022-02-24 01:30:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:30:59,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:30:59,624 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:30:59,624 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:30:59,624 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:30:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:31:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:31:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:31:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:31:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:31:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:31:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:31:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:31:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:31:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:31:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:31:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:31:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:31:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:31:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:31:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:31:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:31:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:31:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:31:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:31:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:31:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:31:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:31:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:31:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:31:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:31:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:31:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:31:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:31:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:01,436 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 01:31:01,436 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:01,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195920026] [2022-02-24 01:31:01,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [195920026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:01,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:01,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 01:31:01,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508557660] [2022-02-24 01:31:01,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:01,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 01:31:01,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 01:31:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=4420, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 01:31:01,438 INFO L87 Difference]: Start difference. First operand 309 states and 310 transitions. Second operand has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 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 01:31:07,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:07,130 INFO L93 Difference]: Finished difference Result 322 states and 323 transitions. [2022-02-24 01:31:07,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-24 01:31:07,130 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 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 306 [2022-02-24 01:31:07,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:07,145 INFO L225 Difference]: With dead ends: 322 [2022-02-24 01:31:07,145 INFO L226 Difference]: Without dead ends: 320 [2022-02-24 01:31:07,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2309 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=471, Invalid=17351, Unknown=0, NotChecked=0, Total=17822 [2022-02-24 01:31:07,147 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 175 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 14205 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 14395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 14205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:07,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 366 Invalid, 14395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 14205 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-24 01:31:07,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-24 01:31:07,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2022-02-24 01:31:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 251 states have (on average 1.0079681274900398) internal successors, (253), 252 states have internal predecessors, (253), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-24 01:31:07,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 318 transitions. [2022-02-24 01:31:07,235 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 318 transitions. Word has length 306 [2022-02-24 01:31:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:07,236 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 318 transitions. [2022-02-24 01:31:07,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 2.388059701492537) internal successors, (160), 66 states have internal predecessors, (160), 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 01:31:07,236 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 318 transitions. [2022-02-24 01:31:07,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-02-24 01:31:07,237 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:07,237 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:07,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-24 01:31:07,237 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:07,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1526875166, now seen corresponding path program 59 times [2022-02-24 01:31:07,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:07,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925611757] [2022-02-24 01:31:07,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:07,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:07,241 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:07,241 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:07,241 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-02-24 01:31:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:31:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:31:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:31:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:31:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:31:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:31:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:31:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:31:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:31:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:31:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:31:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:31:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:31:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:31:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:31:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:31:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:31:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:31:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:31:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:31:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:31:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:31:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:31:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:31:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:31:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:31:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:31:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:31:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:31:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:08,127 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 01:31:08,127 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:08,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925611757] [2022-02-24 01:31:08,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1925611757] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:08,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:08,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-24 01:31:08,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222556675] [2022-02-24 01:31:08,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:08,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-24 01:31:08,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-24 01:31:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1030, Invalid=3260, Unknown=0, NotChecked=0, Total=4290 [2022-02-24 01:31:08,129 INFO L87 Difference]: Start difference. First operand 317 states and 318 transitions. Second operand has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 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 01:31:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:09,865 INFO L93 Difference]: Finished difference Result 452 states and 484 transitions. [2022-02-24 01:31:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-24 01:31:09,865 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 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 314 [2022-02-24 01:31:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:09,867 INFO L225 Difference]: With dead ends: 452 [2022-02-24 01:31:09,867 INFO L226 Difference]: Without dead ends: 320 [2022-02-24 01:31:09,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3899 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3208, Invalid=13304, Unknown=0, NotChecked=0, Total=16512 [2022-02-24 01:31:09,870 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 92 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:09,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 120 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:31:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-24 01:31:09,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 319. [2022-02-24 01:31:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 253 states have (on average 1.007905138339921) internal successors, (255), 254 states have internal predecessors, (255), 33 states have call successors, (33), 33 states have call predecessors, (33), 32 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-24 01:31:09,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 320 transitions. [2022-02-24 01:31:09,976 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 320 transitions. Word has length 314 [2022-02-24 01:31:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:09,976 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 320 transitions. [2022-02-24 01:31:09,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.4696969696969697) internal successors, (163), 65 states have internal predecessors, (163), 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 01:31:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 320 transitions. [2022-02-24 01:31:09,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-02-24 01:31:09,977 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:09,977 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:09,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-24 01:31:09,978 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:09,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:09,978 INFO L85 PathProgramCache]: Analyzing trace with hash 101747708, now seen corresponding path program 60 times [2022-02-24 01:31:09,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:09,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822038916] [2022-02-24 01:31:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:09,981 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:09,981 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:09,981 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:31:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:31:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:31:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:31:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:31:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:31:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:31:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:31:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:31:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:31:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:31:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:31:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:31:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:31:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:31:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:31:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:31:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:31:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:31:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:31:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:31:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:31:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:31:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:31:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:31:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:31:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:31:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:31:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:31:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:31:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:11,739 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 01:31:11,739 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:11,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822038916] [2022-02-24 01:31:11,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [822038916] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:11,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:11,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 01:31:11,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592044936] [2022-02-24 01:31:11,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:11,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 01:31:11,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:11,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 01:31:11,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=4690, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 01:31:11,740 INFO L87 Difference]: Start difference. First operand 319 states and 320 transitions. Second operand has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 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 01:31:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:17,646 INFO L93 Difference]: Finished difference Result 332 states and 333 transitions. [2022-02-24 01:31:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-24 01:31:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 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 316 [2022-02-24 01:31:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:17,648 INFO L225 Difference]: With dead ends: 332 [2022-02-24 01:31:17,648 INFO L226 Difference]: Without dead ends: 330 [2022-02-24 01:31:17,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=485, Invalid=18421, Unknown=0, NotChecked=0, Total=18906 [2022-02-24 01:31:17,650 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 180 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 15009 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 15205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 15009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:17,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 373 Invalid, 15205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 15009 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-24 01:31:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-24 01:31:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 327. [2022-02-24 01:31:17,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 259 states have (on average 1.0077220077220077) internal successors, (261), 260 states have internal predecessors, (261), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-24 01:31:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 328 transitions. [2022-02-24 01:31:17,748 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 328 transitions. Word has length 316 [2022-02-24 01:31:17,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:17,748 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 328 transitions. [2022-02-24 01:31:17,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 2.391304347826087) internal successors, (165), 68 states have internal predecessors, (165), 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 01:31:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 328 transitions. [2022-02-24 01:31:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-02-24 01:31:17,750 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:17,750 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:17,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-24 01:31:17,751 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:17,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:17,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2044774954, now seen corresponding path program 61 times [2022-02-24 01:31:17,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:17,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174768592] [2022-02-24 01:31:17,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:17,759 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:17,759 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:17,759 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-02-24 01:31:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:31:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:31:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:31:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:31:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:31:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:31:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:31:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:31:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:31:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:31:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:31:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:31:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:31:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:31:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:31:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:31:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:31:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:31:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:31:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:31:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:31:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:31:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:31:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:31:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:31:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:31:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:31:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:31:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:31:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:31:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:18,715 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 01:31:18,715 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:18,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174768592] [2022-02-24 01:31:18,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1174768592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:18,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:18,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-24 01:31:18,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331757188] [2022-02-24 01:31:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:18,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-24 01:31:18,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:18,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-24 01:31:18,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1095, Invalid=3461, Unknown=0, NotChecked=0, Total=4556 [2022-02-24 01:31:18,717 INFO L87 Difference]: Start difference. First operand 327 states and 328 transitions. Second operand has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 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 01:31:20,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:20,290 INFO L93 Difference]: Finished difference Result 466 states and 499 transitions. [2022-02-24 01:31:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-24 01:31:20,290 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 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 324 [2022-02-24 01:31:20,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:20,291 INFO L225 Difference]: With dead ends: 466 [2022-02-24 01:31:20,291 INFO L226 Difference]: Without dead ends: 330 [2022-02-24 01:31:20,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4153 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3407, Invalid=14149, Unknown=0, NotChecked=0, Total=17556 [2022-02-24 01:31:20,294 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 94 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:20,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 112 Invalid, 1498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-24 01:31:20,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-02-24 01:31:20,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 329. [2022-02-24 01:31:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 261 states have (on average 1.0076628352490422) internal successors, (263), 262 states have internal predecessors, (263), 34 states have call successors, (34), 34 states have call predecessors, (34), 33 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-24 01:31:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 330 transitions. [2022-02-24 01:31:20,430 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 330 transitions. Word has length 324 [2022-02-24 01:31:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:20,430 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 330 transitions. [2022-02-24 01:31:20,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 67 states have internal predecessors, (168), 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 01:31:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 330 transitions. [2022-02-24 01:31:20,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-24 01:31:20,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:20,432 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:20,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-24 01:31:20,432 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:20,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1013727180, now seen corresponding path program 62 times [2022-02-24 01:31:20,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:20,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1540303481] [2022-02-24 01:31:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:20,435 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:20,436 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:20,436 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:31:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:31:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:31:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:31:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:31:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:31:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:31:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:31:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:31:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:31:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:31:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:31:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:31:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:31:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:31:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:31:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:31:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:31:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:31:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:31:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:31:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:31:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:31:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:31:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:31:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:31:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:31:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:31:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:31:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:31:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:31:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:21,968 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 01:31:21,968 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:21,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1540303481] [2022-02-24 01:31:21,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1540303481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:21,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:21,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 01:31:21,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478204967] [2022-02-24 01:31:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:21,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 01:31:21,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:21,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 01:31:21,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=4968, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 01:31:21,969 INFO L87 Difference]: Start difference. First operand 329 states and 330 transitions. Second operand has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 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 01:31:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:27,563 INFO L93 Difference]: Finished difference Result 342 states and 343 transitions. [2022-02-24 01:31:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-24 01:31:27,564 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 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 326 [2022-02-24 01:31:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:27,565 INFO L225 Difference]: With dead ends: 342 [2022-02-24 01:31:27,565 INFO L226 Difference]: Without dead ends: 340 [2022-02-24 01:31:27,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2589 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=499, Invalid=19523, Unknown=0, NotChecked=0, Total=20022 [2022-02-24 01:31:27,567 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 185 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 15941 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 16143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 15941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:27,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 384 Invalid, 16143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 15941 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-24 01:31:27,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-24 01:31:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2022-02-24 01:31:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 267 states have (on average 1.0074906367041199) internal successors, (269), 268 states have internal predecessors, (269), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-24 01:31:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 338 transitions. [2022-02-24 01:31:27,680 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 338 transitions. Word has length 326 [2022-02-24 01:31:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:27,680 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 338 transitions. [2022-02-24 01:31:27,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 2.3943661971830985) internal successors, (170), 70 states have internal predecessors, (170), 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 01:31:27,680 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 338 transitions. [2022-02-24 01:31:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-02-24 01:31:27,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:27,681 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:27,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-24 01:31:27,681 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:27,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:27,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1713811982, now seen corresponding path program 63 times [2022-02-24 01:31:27,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:27,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407902041] [2022-02-24 01:31:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:27,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:27,686 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:27,686 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:27,686 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-02-24 01:31:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:31:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:31:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:31:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:31:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:31:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:31:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:31:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:31:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:31:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:31:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:31:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:31:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:31:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:31:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:31:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:31:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:31:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:31:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:31:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:31:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:31:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:31:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:31:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:31:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:31:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:31:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:31:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:31:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:31:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:31:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:31:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:28,575 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 01:31:28,575 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:28,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407902041] [2022-02-24 01:31:28,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [407902041] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:28,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:28,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-24 01:31:28,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093367801] [2022-02-24 01:31:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:28,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-24 01:31:28,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-24 01:31:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1162, Invalid=3668, Unknown=0, NotChecked=0, Total=4830 [2022-02-24 01:31:28,578 INFO L87 Difference]: Start difference. First operand 337 states and 338 transitions. Second operand has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 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 01:31:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:30,409 INFO L93 Difference]: Finished difference Result 480 states and 514 transitions. [2022-02-24 01:31:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-24 01:31:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 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 334 [2022-02-24 01:31:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:30,411 INFO L225 Difference]: With dead ends: 480 [2022-02-24 01:31:30,411 INFO L226 Difference]: Without dead ends: 340 [2022-02-24 01:31:30,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=3612, Invalid=15020, Unknown=0, NotChecked=0, Total=18632 [2022-02-24 01:31:30,413 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 96 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:30,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 134 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:31:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-02-24 01:31:30,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 339. [2022-02-24 01:31:30,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 269 states have (on average 1.0074349442379182) internal successors, (271), 270 states have internal predecessors, (271), 35 states have call successors, (35), 35 states have call predecessors, (35), 34 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-24 01:31:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 340 transitions. [2022-02-24 01:31:30,521 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 340 transitions. Word has length 334 [2022-02-24 01:31:30,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:30,521 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 340 transitions. [2022-02-24 01:31:30,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.4714285714285715) internal successors, (173), 69 states have internal predecessors, (173), 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 01:31:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 340 transitions. [2022-02-24 01:31:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-02-24 01:31:30,522 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:30,522 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:30,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-24 01:31:30,522 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1458593516, now seen corresponding path program 64 times [2022-02-24 01:31:30,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:30,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113859876] [2022-02-24 01:31:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:30,536 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:30,537 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:30,537 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:31:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:31:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:31:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:31:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:31:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:31:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:31:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:31:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:31:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:31:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:31:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:31:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:31:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:31:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:31:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:31:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:31:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:31:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:31:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:31:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:31:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:31:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:31:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:31:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:31:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:31:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:31:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:31:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:31:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:31:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:31:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:31:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:32,682 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 01:31:32,682 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:32,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113859876] [2022-02-24 01:31:32,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [113859876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:32,683 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:32,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 01:31:32,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608796260] [2022-02-24 01:31:32,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:32,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 01:31:32,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:32,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 01:31:32,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=5254, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 01:31:32,684 INFO L87 Difference]: Start difference. First operand 339 states and 340 transitions. Second operand has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 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 01:31:38,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:38,800 INFO L93 Difference]: Finished difference Result 352 states and 353 transitions. [2022-02-24 01:31:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-24 01:31:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 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 336 [2022-02-24 01:31:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:38,801 INFO L225 Difference]: With dead ends: 352 [2022-02-24 01:31:38,801 INFO L226 Difference]: Without dead ends: 350 [2022-02-24 01:31:38,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2735 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=513, Invalid=20657, Unknown=0, NotChecked=0, Total=21170 [2022-02-24 01:31:38,802 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 190 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 16899 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 17107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 16899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:38,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 395 Invalid, 17107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 16899 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-24 01:31:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-24 01:31:38,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 347. [2022-02-24 01:31:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 275 states have (on average 1.0072727272727273) internal successors, (277), 276 states have internal predecessors, (277), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-24 01:31:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 348 transitions. [2022-02-24 01:31:38,908 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 348 transitions. Word has length 336 [2022-02-24 01:31:38,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:38,908 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 348 transitions. [2022-02-24 01:31:38,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 2.3972602739726026) internal successors, (175), 72 states have internal predecessors, (175), 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 01:31:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 348 transitions. [2022-02-24 01:31:38,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-02-24 01:31:38,909 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:38,910 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:38,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-24 01:31:38,910 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:38,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1422583610, now seen corresponding path program 65 times [2022-02-24 01:31:38,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:38,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754899682] [2022-02-24 01:31:38,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:38,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:38,914 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:38,914 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:38,914 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-02-24 01:31:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:31:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:31:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:31:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:31:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:31:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:31:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:31:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:31:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:31:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:31:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:31:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:31:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:31:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:31:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:31:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:31:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:31:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:31:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:31:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:31:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:31:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:31:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:31:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:31:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:31:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:31:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:31:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:31:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:31:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:31:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:31:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:31:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:40,260 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 01:31:40,261 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:40,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754899682] [2022-02-24 01:31:40,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [754899682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:40,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:40,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-24 01:31:40,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816145059] [2022-02-24 01:31:40,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:40,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-24 01:31:40,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:40,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-24 01:31:40,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=3881, Unknown=0, NotChecked=0, Total=5112 [2022-02-24 01:31:40,265 INFO L87 Difference]: Start difference. First operand 347 states and 348 transitions. Second operand has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 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 01:31:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:41,980 INFO L93 Difference]: Finished difference Result 494 states and 529 transitions. [2022-02-24 01:31:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-24 01:31:41,980 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 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 344 [2022-02-24 01:31:41,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:41,981 INFO L225 Difference]: With dead ends: 494 [2022-02-24 01:31:41,982 INFO L226 Difference]: Without dead ends: 350 [2022-02-24 01:31:41,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4685 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3823, Invalid=15917, Unknown=0, NotChecked=0, Total=19740 [2022-02-24 01:31:41,983 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 98 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:41,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 141 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:31:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-02-24 01:31:42,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2022-02-24 01:31:42,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.0072202166064983) internal successors, (279), 278 states have internal predecessors, (279), 36 states have call successors, (36), 36 states have call predecessors, (36), 35 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-24 01:31:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 350 transitions. [2022-02-24 01:31:42,076 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 350 transitions. Word has length 344 [2022-02-24 01:31:42,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:42,076 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 350 transitions. [2022-02-24 01:31:42,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 2.4722222222222223) internal successors, (178), 71 states have internal predecessors, (178), 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 01:31:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 350 transitions. [2022-02-24 01:31:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-02-24 01:31:42,078 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:42,078 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:42,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-24 01:31:42,078 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:42,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1154824156, now seen corresponding path program 66 times [2022-02-24 01:31:42,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:42,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28094475] [2022-02-24 01:31:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:42,082 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:42,082 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:42,082 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:31:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:31:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:31:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:31:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:31:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:31:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:31:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:31:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:31:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:31:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:31:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:31:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:31:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:31:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:31:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:31:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:31:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:31:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:31:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:31:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:31:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:31:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:31:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:31:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:31:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:31:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:31:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:31:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:31:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:31:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:31:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:31:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:31:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:44,227 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 01:31:44,227 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:44,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28094475] [2022-02-24 01:31:44,227 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [28094475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:44,227 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:44,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 01:31:44,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750054237] [2022-02-24 01:31:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:44,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 01:31:44,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:44,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 01:31:44,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=5548, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 01:31:44,229 INFO L87 Difference]: Start difference. First operand 349 states and 350 transitions. Second operand has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 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 01:31:52,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:52,242 INFO L93 Difference]: Finished difference Result 362 states and 363 transitions. [2022-02-24 01:31:52,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-24 01:31:52,243 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 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 346 [2022-02-24 01:31:52,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:52,244 INFO L225 Difference]: With dead ends: 362 [2022-02-24 01:31:52,244 INFO L226 Difference]: Without dead ends: 360 [2022-02-24 01:31:52,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2885 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=527, Invalid=21823, Unknown=0, NotChecked=0, Total=22350 [2022-02-24 01:31:52,246 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 195 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 18249 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 18463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 18249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:52,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 414 Invalid, 18463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 18249 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 01:31:52,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-24 01:31:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2022-02-24 01:31:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 283 states have (on average 1.0070671378091873) internal successors, (285), 284 states have internal predecessors, (285), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-24 01:31:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 358 transitions. [2022-02-24 01:31:52,398 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 358 transitions. Word has length 346 [2022-02-24 01:31:52,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:52,399 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 358 transitions. [2022-02-24 01:31:52,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 2.4) internal successors, (180), 74 states have internal predecessors, (180), 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 01:31:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 358 transitions. [2022-02-24 01:31:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-02-24 01:31:52,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:52,401 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:52,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-24 01:31:52,401 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:52,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1242641922, now seen corresponding path program 67 times [2022-02-24 01:31:52,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:52,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294501831] [2022-02-24 01:31:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:52,405 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:52,405 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:52,406 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-02-24 01:31:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:31:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:31:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:31:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:31:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:31:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:31:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:31:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:31:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:31:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:31:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:31:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:31:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:31:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:31:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:31:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:31:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:31:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:31:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:31:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:31:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:31:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:31:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:31:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:31:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:31:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:31:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:31:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:31:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:31:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:31:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:31:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:31:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:31:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:53,391 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 01:31:53,391 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:53,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294501831] [2022-02-24 01:31:53,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1294501831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:53,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:53,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-24 01:31:53,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672210063] [2022-02-24 01:31:53,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:53,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-24 01:31:53,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:53,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-24 01:31:53,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1302, Invalid=4100, Unknown=0, NotChecked=0, Total=5402 [2022-02-24 01:31:53,393 INFO L87 Difference]: Start difference. First operand 357 states and 358 transitions. Second operand has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 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 01:31:56,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:31:56,474 INFO L93 Difference]: Finished difference Result 508 states and 544 transitions. [2022-02-24 01:31:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-24 01:31:56,475 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 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 354 [2022-02-24 01:31:56,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:31:56,477 INFO L225 Difference]: With dead ends: 508 [2022-02-24 01:31:56,477 INFO L226 Difference]: Without dead ends: 360 [2022-02-24 01:31:56,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4963 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4040, Invalid=16840, Unknown=0, NotChecked=0, Total=20880 [2022-02-24 01:31:56,481 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 100 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:31:56,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 128 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:31:56,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-24 01:31:56,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 359. [2022-02-24 01:31:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 286 states have internal predecessors, (287), 37 states have call successors, (37), 37 states have call predecessors, (37), 36 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-24 01:31:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 360 transitions. [2022-02-24 01:31:56,639 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 360 transitions. Word has length 354 [2022-02-24 01:31:56,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:31:56,640 INFO L470 AbstractCegarLoop]: Abstraction has 359 states and 360 transitions. [2022-02-24 01:31:56,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.472972972972973) internal successors, (183), 73 states have internal predecessors, (183), 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 01:31:56,640 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 360 transitions. [2022-02-24 01:31:56,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-02-24 01:31:56,642 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:31:56,642 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:31:56,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-24 01:31:56,646 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:31:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:31:56,646 INFO L85 PathProgramCache]: Analyzing trace with hash 433019868, now seen corresponding path program 68 times [2022-02-24 01:31:56,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:31:56,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936502130] [2022-02-24 01:31:56,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:31:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:31:56,659 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:31:56,659 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:31:56,660 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:31:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:31:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:31:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:31:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:31:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:31:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:31:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:31:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:31:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:31:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:31:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:31:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:31:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:31:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:31:58,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:31:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:58,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:31:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:31:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:31:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:31:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:31:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:31:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:31:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:31:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:31:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:31:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:31:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:31:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:31:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:31:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:31:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:31:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:31:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:31:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:31:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:31:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:31:59,027 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 01:31:59,027 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:31:59,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936502130] [2022-02-24 01:31:59,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [936502130] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:31:59,028 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:31:59,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 01:31:59,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049574517] [2022-02-24 01:31:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:31:59,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 01:31:59,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:31:59,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 01:31:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=5850, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 01:31:59,030 INFO L87 Difference]: Start difference. First operand 359 states and 360 transitions. Second operand has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 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 01:32:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:06,960 INFO L93 Difference]: Finished difference Result 372 states and 373 transitions. [2022-02-24 01:32:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-24 01:32:06,960 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 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 356 [2022-02-24 01:32:06,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:06,969 INFO L225 Difference]: With dead ends: 372 [2022-02-24 01:32:06,970 INFO L226 Difference]: Without dead ends: 370 [2022-02-24 01:32:06,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3039 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=541, Invalid=23021, Unknown=0, NotChecked=0, Total=23562 [2022-02-24 01:32:06,971 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 200 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 19160 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 19380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 19160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:06,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 421 Invalid, 19380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 19160 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-02-24 01:32:06,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-24 01:32:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 367. [2022-02-24 01:32:07,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 291 states have (on average 1.006872852233677) internal successors, (293), 292 states have internal predecessors, (293), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-24 01:32:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 368 transitions. [2022-02-24 01:32:07,117 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 368 transitions. Word has length 356 [2022-02-24 01:32:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:07,118 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 368 transitions. [2022-02-24 01:32:07,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 2.4025974025974026) internal successors, (185), 76 states have internal predecessors, (185), 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 01:32:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 368 transitions. [2022-02-24 01:32:07,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-02-24 01:32:07,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:07,119 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:07,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-24 01:32:07,119 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:07,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash 226502070, now seen corresponding path program 69 times [2022-02-24 01:32:07,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:07,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64666883] [2022-02-24 01:32:07,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:07,123 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:07,123 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:07,123 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-02-24 01:32:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:32:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:32:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:32:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:32:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:32:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:32:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:32:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:32:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:32:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:32:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:32:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:32:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:32:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:32:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:32:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:32:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:32:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:32:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:32:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:32:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:32:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:32:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:32:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:32:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:32:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:32:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:32:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:32:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:32:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:32:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:32:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:32:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:32:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:32:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:08,272 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 01:32:08,272 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:08,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64666883] [2022-02-24 01:32:08,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [64666883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:08,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:08,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-24 01:32:08,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308376869] [2022-02-24 01:32:08,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:08,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-24 01:32:08,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:08,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-24 01:32:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1375, Invalid=4325, Unknown=0, NotChecked=0, Total=5700 [2022-02-24 01:32:08,274 INFO L87 Difference]: Start difference. First operand 367 states and 368 transitions. Second operand has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 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 01:32:10,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:10,373 INFO L93 Difference]: Finished difference Result 522 states and 559 transitions. [2022-02-24 01:32:10,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-24 01:32:10,373 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 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 364 [2022-02-24 01:32:10,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:10,374 INFO L225 Difference]: With dead ends: 522 [2022-02-24 01:32:10,374 INFO L226 Difference]: Without dead ends: 370 [2022-02-24 01:32:10,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5249 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4263, Invalid=17789, Unknown=0, NotChecked=0, Total=22052 [2022-02-24 01:32:10,377 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 102 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:10,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 135 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:32:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-02-24 01:32:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2022-02-24 01:32:10,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 293 states have (on average 1.006825938566553) internal successors, (295), 294 states have internal predecessors, (295), 38 states have call successors, (38), 38 states have call predecessors, (38), 37 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-24 01:32:10,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 370 transitions. [2022-02-24 01:32:10,499 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 370 transitions. Word has length 364 [2022-02-24 01:32:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:10,499 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 370 transitions. [2022-02-24 01:32:10,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 2.473684210526316) internal successors, (188), 75 states have internal predecessors, (188), 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 01:32:10,499 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 370 transitions. [2022-02-24 01:32:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-02-24 01:32:10,500 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:10,500 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:10,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-24 01:32:10,500 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1057850860, now seen corresponding path program 70 times [2022-02-24 01:32:10,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:10,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931378854] [2022-02-24 01:32:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:10,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:10,504 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:10,504 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:10,504 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:32:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:32:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:32:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:32:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:32:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:32:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:32:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:32:12,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:32:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:32:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:32:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:32:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:32:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:32:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:32:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:32:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:32:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:32:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:32:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:32:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:32:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:32:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:32:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:32:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:32:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:32:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:32:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:32:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:32:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:32:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:32:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:32:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:32:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:32:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:32:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:12,778 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 01:32:12,778 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:12,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931378854] [2022-02-24 01:32:12,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1931378854] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:12,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:12,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-24 01:32:12,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518604834] [2022-02-24 01:32:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:12,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-24 01:32:12,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:12,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-24 01:32:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=6160, Unknown=0, NotChecked=0, Total=6320 [2022-02-24 01:32:12,779 INFO L87 Difference]: Start difference. First operand 369 states and 370 transitions. Second operand has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 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 01:32:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:20,972 INFO L93 Difference]: Finished difference Result 382 states and 383 transitions. [2022-02-24 01:32:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-24 01:32:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 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 366 [2022-02-24 01:32:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:20,973 INFO L225 Difference]: With dead ends: 382 [2022-02-24 01:32:20,973 INFO L226 Difference]: Without dead ends: 380 [2022-02-24 01:32:20,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=555, Invalid=24251, Unknown=0, NotChecked=0, Total=24806 [2022-02-24 01:32:20,975 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 205 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 19944 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 20170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 19944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:20,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 428 Invalid, 20170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 19944 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-02-24 01:32:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-24 01:32:21,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 377. [2022-02-24 01:32:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 299 states have (on average 1.0066889632107023) internal successors, (301), 300 states have internal predecessors, (301), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-24 01:32:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 378 transitions. [2022-02-24 01:32:21,080 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 378 transitions. Word has length 366 [2022-02-24 01:32:21,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:21,081 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 378 transitions. [2022-02-24 01:32:21,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 2.4050632911392404) internal successors, (190), 78 states have internal predecessors, (190), 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 01:32:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 378 transitions. [2022-02-24 01:32:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2022-02-24 01:32:21,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:21,083 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:21,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-24 01:32:21,083 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1436388334, now seen corresponding path program 71 times [2022-02-24 01:32:21,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:21,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811475046] [2022-02-24 01:32:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:21,086 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:21,086 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:21,087 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-02-24 01:32:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:32:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:32:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:32:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:32:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:32:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:32:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:32:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:32:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:32:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:32:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:32:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:32:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:32:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:32:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:32:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:32:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:32:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:32:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:32:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:32:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:32:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:32:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:32:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:32:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:32:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:32:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:32:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:32:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:32:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:32:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:32:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:32:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:32:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:32:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:32:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:22,361 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 01:32:22,361 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:22,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811475046] [2022-02-24 01:32:22,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1811475046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:22,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:22,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-24 01:32:22,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165303729] [2022-02-24 01:32:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:22,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-24 01:32:22,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:22,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-24 01:32:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1450, Invalid=4556, Unknown=0, NotChecked=0, Total=6006 [2022-02-24 01:32:22,363 INFO L87 Difference]: Start difference. First operand 377 states and 378 transitions. Second operand has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 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 01:32:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:24,340 INFO L93 Difference]: Finished difference Result 536 states and 574 transitions. [2022-02-24 01:32:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-24 01:32:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 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 374 [2022-02-24 01:32:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:24,342 INFO L225 Difference]: With dead ends: 536 [2022-02-24 01:32:24,342 INFO L226 Difference]: Without dead ends: 380 [2022-02-24 01:32:24,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5543 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4492, Invalid=18764, Unknown=0, NotChecked=0, Total=23256 [2022-02-24 01:32:24,346 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 104 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1738 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:24,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 132 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1738 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:32:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-24 01:32:24,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 379. [2022-02-24 01:32:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 301 states have (on average 1.0066445182724253) internal successors, (303), 302 states have internal predecessors, (303), 39 states have call successors, (39), 39 states have call predecessors, (39), 38 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-24 01:32:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 380 transitions. [2022-02-24 01:32:24,480 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 380 transitions. Word has length 374 [2022-02-24 01:32:24,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:24,481 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 380 transitions. [2022-02-24 01:32:24,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.4743589743589745) internal successors, (193), 77 states have internal predecessors, (193), 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 01:32:24,481 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 380 transitions. [2022-02-24 01:32:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2022-02-24 01:32:24,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:24,482 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:24,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-24 01:32:24,482 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:24,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:24,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1724874036, now seen corresponding path program 72 times [2022-02-24 01:32:24,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:24,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707600383] [2022-02-24 01:32:24,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:24,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:24,487 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:24,487 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:24,487 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:32:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:32:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:32:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:32:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:32:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:32:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:32:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:32:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:32:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:32:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:32:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:32:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:32:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:32:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:32:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:32:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:32:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:32:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:32:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:32:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:32:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:32:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:32:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:32:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:32:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:32:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:32:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:32:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:32:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:32:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:32:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:32:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:32:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:32:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:32:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:32:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:26,390 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 01:32:26,390 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:26,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707600383] [2022-02-24 01:32:26,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1707600383] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:26,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:26,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-24 01:32:26,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562815823] [2022-02-24 01:32:26,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:26,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-24 01:32:26,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:26,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-24 01:32:26,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=6478, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 01:32:26,392 INFO L87 Difference]: Start difference. First operand 379 states and 380 transitions. Second operand has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 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 01:32:34,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:34,307 INFO L93 Difference]: Finished difference Result 392 states and 393 transitions. [2022-02-24 01:32:34,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-24 01:32:34,308 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 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 376 [2022-02-24 01:32:34,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:34,309 INFO L225 Difference]: With dead ends: 392 [2022-02-24 01:32:34,310 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 01:32:34,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3359 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=569, Invalid=25513, Unknown=0, NotChecked=0, Total=26082 [2022-02-24 01:32:34,313 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 210 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 21016 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 21248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 21016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:34,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 439 Invalid, 21248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 21016 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-24 01:32:34,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 01:32:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2022-02-24 01:32:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 307 states have (on average 1.006514657980456) internal successors, (309), 308 states have internal predecessors, (309), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-24 01:32:34,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 388 transitions. [2022-02-24 01:32:34,465 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 388 transitions. Word has length 376 [2022-02-24 01:32:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:34,465 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 388 transitions. [2022-02-24 01:32:34,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 2.4074074074074074) internal successors, (195), 80 states have internal predecessors, (195), 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 01:32:34,480 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 388 transitions. [2022-02-24 01:32:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-02-24 01:32:34,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:34,481 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:34,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-24 01:32:34,482 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:34,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:34,482 INFO L85 PathProgramCache]: Analyzing trace with hash -998024026, now seen corresponding path program 73 times [2022-02-24 01:32:34,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:34,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587814824] [2022-02-24 01:32:34,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:34,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:34,485 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:34,485 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:34,486 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-02-24 01:32:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:32:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:32:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:32:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:32:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:32:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:32:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:32:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:32:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:32:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:32:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:32:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:32:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:32:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:32:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:32:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:32:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:32:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:32:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:32:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:32:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:32:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:32:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:32:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:32:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:32:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:32:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:32:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:32:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:32:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:32:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:32:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:32:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:32:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:32:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:32:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:32:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:35,992 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 01:32:35,992 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:35,992 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587814824] [2022-02-24 01:32:35,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [587814824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:35,992 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:35,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-24 01:32:35,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145035952] [2022-02-24 01:32:35,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:35,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-24 01:32:35,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-24 01:32:35,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1527, Invalid=4793, Unknown=0, NotChecked=0, Total=6320 [2022-02-24 01:32:35,995 INFO L87 Difference]: Start difference. First operand 387 states and 388 transitions. Second operand has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 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 01:32:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:38,306 INFO L93 Difference]: Finished difference Result 550 states and 589 transitions. [2022-02-24 01:32:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-24 01:32:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 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 384 [2022-02-24 01:32:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:38,308 INFO L225 Difference]: With dead ends: 550 [2022-02-24 01:32:38,308 INFO L226 Difference]: Without dead ends: 390 [2022-02-24 01:32:38,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5845 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4727, Invalid=19765, Unknown=0, NotChecked=0, Total=24492 [2022-02-24 01:32:38,314 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 106 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2522 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:38,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 154 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:32:38,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-02-24 01:32:38,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2022-02-24 01:32:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 309 states have (on average 1.006472491909385) internal successors, (311), 310 states have internal predecessors, (311), 40 states have call successors, (40), 40 states have call predecessors, (40), 39 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-24 01:32:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 390 transitions. [2022-02-24 01:32:38,475 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 390 transitions. Word has length 384 [2022-02-24 01:32:38,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:38,475 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 390 transitions. [2022-02-24 01:32:38,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 2.475) internal successors, (198), 79 states have internal predecessors, (198), 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 01:32:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 390 transitions. [2022-02-24 01:32:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-02-24 01:32:38,477 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:38,477 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:38,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-24 01:32:38,477 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash 464377348, now seen corresponding path program 74 times [2022-02-24 01:32:38,478 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:38,478 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829558623] [2022-02-24 01:32:38,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:38,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:38,487 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:38,487 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:38,487 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:32:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:32:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:32:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:32:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:32:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:32:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:32:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:32:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:32:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:32:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:32:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:32:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:32:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:32:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:32:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:32:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:32:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:32:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:32:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:32:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:32:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:32:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:32:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:32:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:32:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:32:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:32:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:32:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:32:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:32:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:32:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:32:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:32:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:32:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:32:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:32:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:32:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:41,619 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 01:32:41,619 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:41,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829558623] [2022-02-24 01:32:41,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [829558623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:41,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:41,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-24 01:32:41,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228193020] [2022-02-24 01:32:41,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:41,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-24 01:32:41,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:41,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-24 01:32:41,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=6804, Unknown=0, NotChecked=0, Total=6972 [2022-02-24 01:32:41,620 INFO L87 Difference]: Start difference. First operand 389 states and 390 transitions. Second operand has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 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 01:32:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:50,666 INFO L93 Difference]: Finished difference Result 402 states and 403 transitions. [2022-02-24 01:32:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-24 01:32:50,666 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 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 386 [2022-02-24 01:32:50,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:50,668 INFO L225 Difference]: With dead ends: 402 [2022-02-24 01:32:50,668 INFO L226 Difference]: Without dead ends: 400 [2022-02-24 01:32:50,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3525 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=583, Invalid=26807, Unknown=0, NotChecked=0, Total=27390 [2022-02-24 01:32:50,669 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 215 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 22237 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 22475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 22237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:50,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 454 Invalid, 22475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 22237 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-24 01:32:50,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-24 01:32:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 397. [2022-02-24 01:32:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 315 states have (on average 1.0063492063492063) internal successors, (317), 316 states have internal predecessors, (317), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-24 01:32:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 398 transitions. [2022-02-24 01:32:50,809 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 398 transitions. Word has length 386 [2022-02-24 01:32:50,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:50,809 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 398 transitions. [2022-02-24 01:32:50,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 2.4096385542168677) internal successors, (200), 82 states have internal predecessors, (200), 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 01:32:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 398 transitions. [2022-02-24 01:32:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-02-24 01:32:50,811 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:50,811 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:50,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-24 01:32:50,811 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash 418772958, now seen corresponding path program 75 times [2022-02-24 01:32:50,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:50,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734074100] [2022-02-24 01:32:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:50,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:50,815 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:50,815 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:50,815 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-02-24 01:32:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:32:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:32:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:32:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:32:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:32:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:32:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:32:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:32:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:32:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:32:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:32:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:32:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:32:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:32:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:32:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:32:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:32:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:32:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:32:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:32:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:32:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:32:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:32:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:32:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:32:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:32:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:32:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:32:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:32:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:32:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:32:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:32:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:32:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:32:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:32:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:32:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:32:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:52,259 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 01:32:52,259 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:52,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [734074100] [2022-02-24 01:32:52,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [734074100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:52,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:52,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-24 01:32:52,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9102656] [2022-02-24 01:32:52,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:52,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-24 01:32:52,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:52,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-24 01:32:52,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=5036, Unknown=0, NotChecked=0, Total=6642 [2022-02-24 01:32:52,262 INFO L87 Difference]: Start difference. First operand 397 states and 398 transitions. Second operand has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 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 01:32:54,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:32:54,462 INFO L93 Difference]: Finished difference Result 564 states and 604 transitions. [2022-02-24 01:32:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-24 01:32:54,462 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 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 394 [2022-02-24 01:32:54,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:32:54,464 INFO L225 Difference]: With dead ends: 564 [2022-02-24 01:32:54,464 INFO L226 Difference]: Without dead ends: 400 [2022-02-24 01:32:54,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6155 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4968, Invalid=20792, Unknown=0, NotChecked=0, Total=25760 [2022-02-24 01:32:54,466 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 108 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:32:54,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 131 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:32:54,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2022-02-24 01:32:54,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 399. [2022-02-24 01:32:54,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 317 states have (on average 1.0063091482649842) internal successors, (319), 318 states have internal predecessors, (319), 41 states have call successors, (41), 41 states have call predecessors, (41), 40 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-24 01:32:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 400 transitions. [2022-02-24 01:32:54,624 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 400 transitions. Word has length 394 [2022-02-24 01:32:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:32:54,624 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 400 transitions. [2022-02-24 01:32:54,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 2.475609756097561) internal successors, (203), 81 states have internal predecessors, (203), 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 01:32:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 400 transitions. [2022-02-24 01:32:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2022-02-24 01:32:54,626 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:32:54,626 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:32:54,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-24 01:32:54,626 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:32:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:32:54,627 INFO L85 PathProgramCache]: Analyzing trace with hash -938028100, now seen corresponding path program 76 times [2022-02-24 01:32:54,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:32:54,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1091364594] [2022-02-24 01:32:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:32:54,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:32:54,631 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:32:54,631 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:32:54,631 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:32:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:32:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:32:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:32:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:32:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:32:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:32:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:32:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:32:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:32:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:32:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:32:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:32:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:32:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:32:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:32:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:32:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:32:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:32:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:32:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:32:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:32:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:32:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:32:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:32:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:32:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:32:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:32:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:32:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:32:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:32:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:32:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:32:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:32:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:32:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:32:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:32:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:32:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:32:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:32:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:32:56,540 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 01:32:56,540 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:32:56,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1091364594] [2022-02-24 01:32:56,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1091364594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:32:56,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:32:56,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-24 01:32:56,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192375749] [2022-02-24 01:32:56,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:32:56,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-24 01:32:56,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:32:56,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-24 01:32:56,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=7138, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 01:32:56,542 INFO L87 Difference]: Start difference. First operand 399 states and 400 transitions. Second operand has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 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 01:33:04,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:04,885 INFO L93 Difference]: Finished difference Result 412 states and 413 transitions. [2022-02-24 01:33:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-02-24 01:33:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 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 396 [2022-02-24 01:33:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:04,890 INFO L225 Difference]: With dead ends: 412 [2022-02-24 01:33:04,890 INFO L226 Difference]: Without dead ends: 410 [2022-02-24 01:33:04,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3695 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=597, Invalid=28133, Unknown=0, NotChecked=0, Total=28730 [2022-02-24 01:33:04,892 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 220 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 23402 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 23646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 23402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:04,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 461 Invalid, 23646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 23402 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-02-24 01:33:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-24 01:33:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 407. [2022-02-24 01:33:05,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 323 states have (on average 1.0061919504643964) internal successors, (325), 324 states have internal predecessors, (325), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-24 01:33:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 408 transitions. [2022-02-24 01:33:05,026 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 408 transitions. Word has length 396 [2022-02-24 01:33:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:05,026 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 408 transitions. [2022-02-24 01:33:05,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 2.411764705882353) internal successors, (205), 84 states have internal predecessors, (205), 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 01:33:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 408 transitions. [2022-02-24 01:33:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-02-24 01:33:05,028 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:05,028 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:05,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-24 01:33:05,028 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:05,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:05,028 INFO L85 PathProgramCache]: Analyzing trace with hash 272743830, now seen corresponding path program 77 times [2022-02-24 01:33:05,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:05,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312171303] [2022-02-24 01:33:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:05,032 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:05,032 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:05,032 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-02-24 01:33:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:33:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:33:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:33:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:33:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:33:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:33:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:33:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:33:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:33:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:33:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:33:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:33:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:33:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:33:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:33:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:33:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:33:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:33:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:33:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:33:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:33:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:33:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:33:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:33:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:33:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:33:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:33:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:33:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:33:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:33:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:33:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:33:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:33:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:33:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:33:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:33:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:33:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:33:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:06,628 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 01:33:06,628 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:06,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312171303] [2022-02-24 01:33:06,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [312171303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:06,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:06,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [84] imperfect sequences [] total 84 [2022-02-24 01:33:06,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307725074] [2022-02-24 01:33:06,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:06,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-24 01:33:06,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:06,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-24 01:33:06,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1687, Invalid=5285, Unknown=0, NotChecked=0, Total=6972 [2022-02-24 01:33:06,631 INFO L87 Difference]: Start difference. First operand 407 states and 408 transitions. Second operand has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 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 01:33:09,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:09,186 INFO L93 Difference]: Finished difference Result 578 states and 619 transitions. [2022-02-24 01:33:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-02-24 01:33:09,186 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 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 404 [2022-02-24 01:33:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:09,188 INFO L225 Difference]: With dead ends: 578 [2022-02-24 01:33:09,188 INFO L226 Difference]: Without dead ends: 410 [2022-02-24 01:33:09,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6473 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5215, Invalid=21845, Unknown=0, NotChecked=0, Total=27060 [2022-02-24 01:33:09,191 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 110 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:09,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 133 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:33:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-02-24 01:33:09,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2022-02-24 01:33:09,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 325 states have (on average 1.0061538461538462) internal successors, (327), 326 states have internal predecessors, (327), 42 states have call successors, (42), 42 states have call predecessors, (42), 41 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-24 01:33:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 410 transitions. [2022-02-24 01:33:09,334 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 410 transitions. Word has length 404 [2022-02-24 01:33:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:09,334 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 410 transitions. [2022-02-24 01:33:09,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 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 01:33:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 410 transitions. [2022-02-24 01:33:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-02-24 01:33:09,335 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:09,335 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:09,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-24 01:33:09,336 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:09,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 446684148, now seen corresponding path program 78 times [2022-02-24 01:33:09,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:09,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786566628] [2022-02-24 01:33:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:09,339 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:09,339 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:09,340 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:33:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:33:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:33:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:33:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:33:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:33:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:33:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:33:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:33:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:33:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:33:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:33:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:33:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:33:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:33:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:33:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:33:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:33:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:33:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:33:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:33:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:33:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:33:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:33:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:33:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:33:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:33:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:33:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:33:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:33:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:33:11,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:33:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:33:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:33:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:33:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:33:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:33:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:33:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:33:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:11,761 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 01:33:11,761 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:11,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786566628] [2022-02-24 01:33:11,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1786566628] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:11,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:11,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-24 01:33:11,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356975220] [2022-02-24 01:33:11,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:11,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-24 01:33:11,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:11,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-24 01:33:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=7480, Unknown=0, NotChecked=0, Total=7656 [2022-02-24 01:33:11,763 INFO L87 Difference]: Start difference. First operand 409 states and 410 transitions. Second operand has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 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 01:33:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:21,299 INFO L93 Difference]: Finished difference Result 422 states and 423 transitions. [2022-02-24 01:33:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-24 01:33:21,300 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 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 406 [2022-02-24 01:33:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:21,301 INFO L225 Difference]: With dead ends: 422 [2022-02-24 01:33:21,301 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 01:33:21,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3869 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=611, Invalid=29491, Unknown=0, NotChecked=0, Total=30102 [2022-02-24 01:33:21,302 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 225 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 24561 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 24811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 24561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:21,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 472 Invalid, 24811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 24561 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-02-24 01:33:21,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 01:33:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2022-02-24 01:33:21,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 331 states have (on average 1.0060422960725075) internal successors, (333), 332 states have internal predecessors, (333), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-24 01:33:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 418 transitions. [2022-02-24 01:33:21,442 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 418 transitions. Word has length 406 [2022-02-24 01:33:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:21,442 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 418 transitions. [2022-02-24 01:33:21,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 2.413793103448276) internal successors, (210), 86 states have internal predecessors, (210), 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 01:33:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 418 transitions. [2022-02-24 01:33:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-02-24 01:33:21,443 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:21,444 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:21,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-24 01:33:21,444 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:21,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1547374030, now seen corresponding path program 79 times [2022-02-24 01:33:21,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:21,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810006944] [2022-02-24 01:33:21,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:21,448 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:21,448 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:21,448 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-02-24 01:33:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:33:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:33:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:33:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:33:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:33:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:33:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:33:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:33:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:33:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:33:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:33:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:33:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:33:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:33:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:33:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:33:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:33:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:33:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:33:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:33:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:33:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:33:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:33:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:33:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:33:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:33:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:33:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:33:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:33:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:33:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:33:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:33:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:33:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:33:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:33:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:33:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:33:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:33:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:33:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:22,834 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 01:33:22,834 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:22,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1810006944] [2022-02-24 01:33:22,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1810006944] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:22,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:22,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [86] imperfect sequences [] total 86 [2022-02-24 01:33:22,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811896770] [2022-02-24 01:33:22,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:22,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-24 01:33:22,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-24 01:33:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=5540, Unknown=0, NotChecked=0, Total=7310 [2022-02-24 01:33:22,837 INFO L87 Difference]: Start difference. First operand 417 states and 418 transitions. Second operand has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 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 01:33:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:25,228 INFO L93 Difference]: Finished difference Result 592 states and 634 transitions. [2022-02-24 01:33:25,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-02-24 01:33:25,228 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 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 414 [2022-02-24 01:33:25,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:25,230 INFO L225 Difference]: With dead ends: 592 [2022-02-24 01:33:25,230 INFO L226 Difference]: Without dead ends: 420 [2022-02-24 01:33:25,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6799 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5468, Invalid=22924, Unknown=0, NotChecked=0, Total=28392 [2022-02-24 01:33:25,236 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 112 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2057 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:25,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 150 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2057 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:33:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-02-24 01:33:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2022-02-24 01:33:25,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 333 states have (on average 1.006006006006006) internal successors, (335), 334 states have internal predecessors, (335), 43 states have call successors, (43), 43 states have call predecessors, (43), 42 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-24 01:33:25,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 420 transitions. [2022-02-24 01:33:25,372 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 420 transitions. Word has length 414 [2022-02-24 01:33:25,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:25,372 INFO L470 AbstractCegarLoop]: Abstraction has 419 states and 420 transitions. [2022-02-24 01:33:25,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.4767441860465116) internal successors, (213), 85 states have internal predecessors, (213), 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 01:33:25,372 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 420 transitions. [2022-02-24 01:33:25,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-02-24 01:33:25,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:25,374 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:25,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-24 01:33:25,375 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:25,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash 33902252, now seen corresponding path program 80 times [2022-02-24 01:33:25,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:25,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921975294] [2022-02-24 01:33:25,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:25,379 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:25,379 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:25,379 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:33:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:33:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:33:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:33:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:33:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:33:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:33:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:33:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:33:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:33:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:33:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:33:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:33:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:33:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:33:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:33:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:33:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:33:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:33:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:33:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:33:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:33:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:33:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:33:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:33:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:33:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:33:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:33:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:33:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:33:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:33:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:33:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:33:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:33:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:33:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:33:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:33:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:33:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:33:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:33:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:27,542 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 01:33:27,543 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:27,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921975294] [2022-02-24 01:33:27,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1921975294] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:27,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:27,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-24 01:33:27,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973155254] [2022-02-24 01:33:27,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:27,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-24 01:33:27,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:27,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-24 01:33:27,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=7830, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 01:33:27,544 INFO L87 Difference]: Start difference. First operand 419 states and 420 transitions. Second operand has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 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 01:33:36,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:36,677 INFO L93 Difference]: Finished difference Result 432 states and 433 transitions. [2022-02-24 01:33:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-24 01:33:36,677 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 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 416 [2022-02-24 01:33:36,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:36,679 INFO L225 Difference]: With dead ends: 432 [2022-02-24 01:33:36,679 INFO L226 Difference]: Without dead ends: 430 [2022-02-24 01:33:36,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4047 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=625, Invalid=30881, Unknown=0, NotChecked=0, Total=31506 [2022-02-24 01:33:36,681 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 230 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 26012 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 26268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 26012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:36,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 491 Invalid, 26268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 26012 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-02-24 01:33:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-24 01:33:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 427. [2022-02-24 01:33:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 340 states have internal predecessors, (341), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-24 01:33:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 428 transitions. [2022-02-24 01:33:36,862 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 428 transitions. Word has length 416 [2022-02-24 01:33:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:36,863 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 428 transitions. [2022-02-24 01:33:36,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 2.4157303370786516) internal successors, (215), 88 states have internal predecessors, (215), 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 01:33:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 428 transitions. [2022-02-24 01:33:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-02-24 01:33:36,864 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:36,864 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:36,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-24 01:33:36,864 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:36,865 INFO L85 PathProgramCache]: Analyzing trace with hash 423512198, now seen corresponding path program 81 times [2022-02-24 01:33:36,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:36,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499994965] [2022-02-24 01:33:36,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:36,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:36,868 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:36,868 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:36,868 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-02-24 01:33:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:33:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:33:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:33:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:33:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:33:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:33:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:33:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:33:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:33:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:33:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:33:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:33:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:33:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:33:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:33:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:33:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:33:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:33:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:33:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:33:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:33:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:33:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:33:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:33:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:33:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:33:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:33:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:33:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:33:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:33:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:33:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:33:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:33:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:33:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:33:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:33:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:33:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:33:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:33:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:33:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:38,443 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 01:33:38,443 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:38,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499994965] [2022-02-24 01:33:38,444 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1499994965] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:38,444 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:38,444 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [88] imperfect sequences [] total 88 [2022-02-24 01:33:38,444 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385589280] [2022-02-24 01:33:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:38,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-24 01:33:38,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:38,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-24 01:33:38,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1855, Invalid=5801, Unknown=0, NotChecked=0, Total=7656 [2022-02-24 01:33:38,446 INFO L87 Difference]: Start difference. First operand 427 states and 428 transitions. Second operand has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 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 01:33:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:41,046 INFO L93 Difference]: Finished difference Result 606 states and 649 transitions. [2022-02-24 01:33:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-24 01:33:41,047 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 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 424 [2022-02-24 01:33:41,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:41,049 INFO L225 Difference]: With dead ends: 606 [2022-02-24 01:33:41,049 INFO L226 Difference]: Without dead ends: 430 [2022-02-24 01:33:41,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7133 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5727, Invalid=24029, Unknown=0, NotChecked=0, Total=29756 [2022-02-24 01:33:41,051 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1906 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:41,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 137 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1906 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-24 01:33:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-24 01:33:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2022-02-24 01:33:41,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 341 states have (on average 1.0058651026392962) internal successors, (343), 342 states have internal predecessors, (343), 44 states have call successors, (44), 44 states have call predecessors, (44), 43 states have return successors, (43), 42 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-24 01:33:41,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 430 transitions. [2022-02-24 01:33:41,251 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 430 transitions. Word has length 424 [2022-02-24 01:33:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:41,251 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 430 transitions. [2022-02-24 01:33:41,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.477272727272727) internal successors, (218), 87 states have internal predecessors, (218), 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 01:33:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 430 transitions. [2022-02-24 01:33:41,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-02-24 01:33:41,253 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:41,253 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:41,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-24 01:33:41,253 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:41,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash -712274972, now seen corresponding path program 82 times [2022-02-24 01:33:41,253 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:41,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870639622] [2022-02-24 01:33:41,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:41,257 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:41,258 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:41,258 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:33:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:33:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:33:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:33:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:33:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:33:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:33:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:33:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:33:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:33:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:33:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:33:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:33:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:33:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:33:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:33:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:33:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:33:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:33:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:33:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:33:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:33:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:33:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:33:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:33:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:33:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:33:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:33:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:33:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:33:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:33:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:33:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:33:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:33:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:33:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:33:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:33:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:33:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:33:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:33:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:33:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:44,826 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 01:33:44,826 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:44,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870639622] [2022-02-24 01:33:44,827 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1870639622] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:44,827 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:44,827 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-24 01:33:44,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121504478] [2022-02-24 01:33:44,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:44,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-24 01:33:44,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-24 01:33:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=8188, Unknown=0, NotChecked=0, Total=8372 [2022-02-24 01:33:44,828 INFO L87 Difference]: Start difference. First operand 429 states and 430 transitions. Second operand has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 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 01:33:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:33:55,049 INFO L93 Difference]: Finished difference Result 442 states and 443 transitions. [2022-02-24 01:33:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-24 01:33:55,049 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 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 426 [2022-02-24 01:33:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:33:55,051 INFO L225 Difference]: With dead ends: 442 [2022-02-24 01:33:55,051 INFO L226 Difference]: Without dead ends: 440 [2022-02-24 01:33:55,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4229 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=639, Invalid=32303, Unknown=0, NotChecked=0, Total=32942 [2022-02-24 01:33:55,053 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 27098 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 27360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 27098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:33:55,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 498 Invalid, 27360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 27098 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-02-24 01:33:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-24 01:33:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 437. [2022-02-24 01:33:55,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 347 states have (on average 1.005763688760807) internal successors, (349), 348 states have internal predecessors, (349), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-24 01:33:55,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 438 transitions. [2022-02-24 01:33:55,257 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 438 transitions. Word has length 426 [2022-02-24 01:33:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:33:55,258 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 438 transitions. [2022-02-24 01:33:55,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.4175824175824174) internal successors, (220), 90 states have internal predecessors, (220), 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 01:33:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 438 transitions. [2022-02-24 01:33:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2022-02-24 01:33:55,260 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:33:55,260 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:33:55,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-24 01:33:55,260 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:33:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:33:55,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1003500098, now seen corresponding path program 83 times [2022-02-24 01:33:55,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:33:55,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141349318] [2022-02-24 01:33:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:33:55,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:33:55,265 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:33:55,265 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:33:55,265 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:33:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:33:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-02-24 01:33:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:33:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:33:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:33:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:33:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:33:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:33:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:33:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:33:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:33:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:33:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:33:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:33:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:33:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:33:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:33:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:33:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:33:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:33:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:33:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:33:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:33:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:33:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:33:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:33:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:33:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:33:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:33:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:33:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:33:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:33:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:33:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:33:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:33:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:33:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:33:57,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:33:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:33:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:33:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:33:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:33:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:33:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:33:57,390 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 01:33:57,390 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:33:57,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141349318] [2022-02-24 01:33:57,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [141349318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:33:57,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:33:57,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [90] imperfect sequences [] total 90 [2022-02-24 01:33:57,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964929611] [2022-02-24 01:33:57,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:33:57,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-24 01:33:57,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:33:57,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-24 01:33:57,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1942, Invalid=6068, Unknown=0, NotChecked=0, Total=8010 [2022-02-24 01:33:57,393 INFO L87 Difference]: Start difference. First operand 437 states and 438 transitions. Second operand has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 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 01:34:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:00,726 INFO L93 Difference]: Finished difference Result 620 states and 664 transitions. [2022-02-24 01:34:00,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-02-24 01:34:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 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 434 [2022-02-24 01:34:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:00,728 INFO L225 Difference]: With dead ends: 620 [2022-02-24 01:34:00,728 INFO L226 Difference]: Without dead ends: 440 [2022-02-24 01:34:00,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7475 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5992, Invalid=25160, Unknown=0, NotChecked=0, Total=31152 [2022-02-24 01:34:00,730 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 2522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:00,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 139 Invalid, 2522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:34:00,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2022-02-24 01:34:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2022-02-24 01:34:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 349 states have (on average 1.005730659025788) internal successors, (351), 350 states have internal predecessors, (351), 45 states have call successors, (45), 45 states have call predecessors, (45), 44 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-24 01:34:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 440 transitions. [2022-02-24 01:34:00,942 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 440 transitions. Word has length 434 [2022-02-24 01:34:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:00,943 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 440 transitions. [2022-02-24 01:34:00,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 2.477777777777778) internal successors, (223), 89 states have internal predecessors, (223), 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 01:34:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 440 transitions. [2022-02-24 01:34:00,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2022-02-24 01:34:00,946 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:00,946 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:00,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-24 01:34:00,947 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:00,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash -889261156, now seen corresponding path program 84 times [2022-02-24 01:34:00,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:00,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572684255] [2022-02-24 01:34:00,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:00,953 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:00,953 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:00,953 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:34:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:34:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:34:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:34:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:34:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:34:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:34:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:34:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:34:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:34:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:34:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:34:04,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:34:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:34:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:34:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:34:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:34:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:34:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:34:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:34:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:34:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:34:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:34:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:34:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:34:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:34:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:34:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:34:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:34:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:34:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:34:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:34:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:34:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:34:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:34:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:34:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:34:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:34:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:34:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:34:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:34:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:34:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:04,087 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 01:34:04,087 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:04,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572684255] [2022-02-24 01:34:04,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [572684255] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:04,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:04,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-24 01:34:04,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367688243] [2022-02-24 01:34:04,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:04,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-24 01:34:04,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:04,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-24 01:34:04,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=8554, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 01:34:04,091 INFO L87 Difference]: Start difference. First operand 439 states and 440 transitions. Second operand has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 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 01:34:13,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:13,564 INFO L93 Difference]: Finished difference Result 452 states and 453 transitions. [2022-02-24 01:34:13,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-24 01:34:13,564 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 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 436 [2022-02-24 01:34:13,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:13,566 INFO L225 Difference]: With dead ends: 452 [2022-02-24 01:34:13,566 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 01:34:13,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4415 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=653, Invalid=33757, Unknown=0, NotChecked=0, Total=34410 [2022-02-24 01:34:13,571 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 240 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 28344 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 28612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 28344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:13,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 509 Invalid, 28612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 28344 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-24 01:34:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 01:34:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2022-02-24 01:34:13,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 355 states have (on average 1.0056338028169014) internal successors, (357), 356 states have internal predecessors, (357), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-24 01:34:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 448 transitions. [2022-02-24 01:34:13,761 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 448 transitions. Word has length 436 [2022-02-24 01:34:13,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:13,761 INFO L470 AbstractCegarLoop]: Abstraction has 447 states and 448 transitions. [2022-02-24 01:34:13,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4193548387096775) internal successors, (225), 92 states have internal predecessors, (225), 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 01:34:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 448 transitions. [2022-02-24 01:34:13,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-02-24 01:34:13,763 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:13,763 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:13,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-24 01:34:13,763 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:13,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1334051466, now seen corresponding path program 85 times [2022-02-24 01:34:13,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:13,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470599575] [2022-02-24 01:34:13,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:13,767 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:13,767 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:13,767 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-02-24 01:34:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:34:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:34:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:34:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:34:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:34:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:34:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:34:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:34:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:34:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:34:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:34:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:34:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:34:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:34:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:34:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:34:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:34:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:34:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:34:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:34:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:34:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:34:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:34:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:34:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:34:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:34:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:34:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:34:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:34:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:34:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:34:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:34:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:34:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:34:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:34:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:34:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:34:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:34:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:34:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:34:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:34:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:34:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:15,193 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 01:34:15,193 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:15,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470599575] [2022-02-24 01:34:15,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1470599575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:15,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:15,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [92] imperfect sequences [] total 92 [2022-02-24 01:34:15,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427823206] [2022-02-24 01:34:15,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:15,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-24 01:34:15,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:15,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-24 01:34:15,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2031, Invalid=6341, Unknown=0, NotChecked=0, Total=8372 [2022-02-24 01:34:15,196 INFO L87 Difference]: Start difference. First operand 447 states and 448 transitions. Second operand has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 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 01:34:18,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:18,376 INFO L93 Difference]: Finished difference Result 634 states and 679 transitions. [2022-02-24 01:34:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-24 01:34:18,377 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 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 444 [2022-02-24 01:34:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:18,378 INFO L225 Difference]: With dead ends: 634 [2022-02-24 01:34:18,378 INFO L226 Difference]: Without dead ends: 450 [2022-02-24 01:34:18,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7825 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=6263, Invalid=26317, Unknown=0, NotChecked=0, Total=32580 [2022-02-24 01:34:18,380 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 118 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:18,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 146 Invalid, 2372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:34:18,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-02-24 01:34:18,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 449. [2022-02-24 01:34:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 357 states have (on average 1.0056022408963585) internal successors, (359), 358 states have internal predecessors, (359), 46 states have call successors, (46), 46 states have call predecessors, (46), 45 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-24 01:34:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 450 transitions. [2022-02-24 01:34:18,608 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 450 transitions. Word has length 444 [2022-02-24 01:34:18,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:18,608 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 450 transitions. [2022-02-24 01:34:18,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.4782608695652173) internal successors, (228), 91 states have internal predecessors, (228), 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 01:34:18,609 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 450 transitions. [2022-02-24 01:34:18,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-02-24 01:34:18,620 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:18,620 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:18,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-24 01:34:18,621 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:18,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash -323754540, now seen corresponding path program 86 times [2022-02-24 01:34:18,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:18,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646448455] [2022-02-24 01:34:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:18,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:18,626 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:18,626 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:18,626 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:34:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:34:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:34:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:34:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:34:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:34:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:34:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:34:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:34:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:34:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:34:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:34:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:34:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:34:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:34:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:34:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:34:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:34:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:34:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:34:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:34:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:34:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:34:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:34:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:34:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:34:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:34:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:34:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:34:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:34:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:34:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:34:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:34:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:34:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:34:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:34:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:34:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:34:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:34:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:34:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:34:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:34:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:34:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:21,384 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 01:34:21,384 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:21,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646448455] [2022-02-24 01:34:21,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [646448455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:21,384 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:21,384 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-24 01:34:21,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179906390] [2022-02-24 01:34:21,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:21,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-24 01:34:21,385 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-24 01:34:21,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=8928, Unknown=0, NotChecked=0, Total=9120 [2022-02-24 01:34:21,386 INFO L87 Difference]: Start difference. First operand 449 states and 450 transitions. Second operand has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 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 01:34:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:31,633 INFO L93 Difference]: Finished difference Result 462 states and 463 transitions. [2022-02-24 01:34:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-24 01:34:31,633 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 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 446 [2022-02-24 01:34:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:31,635 INFO L225 Difference]: With dead ends: 462 [2022-02-24 01:34:31,635 INFO L226 Difference]: Without dead ends: 460 [2022-02-24 01:34:31,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4605 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=667, Invalid=35243, Unknown=0, NotChecked=0, Total=35910 [2022-02-24 01:34:31,638 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 245 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 29296 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 29570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 29296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:31,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 516 Invalid, 29570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 29296 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-02-24 01:34:31,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-24 01:34:31,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 457. [2022-02-24 01:34:31,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 363 states have (on average 1.0055096418732783) internal successors, (365), 364 states have internal predecessors, (365), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-24 01:34:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 458 transitions. [2022-02-24 01:34:31,881 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 458 transitions. Word has length 446 [2022-02-24 01:34:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:31,881 INFO L470 AbstractCegarLoop]: Abstraction has 457 states and 458 transitions. [2022-02-24 01:34:31,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.4210526315789473) internal successors, (230), 94 states have internal predecessors, (230), 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 01:34:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 458 transitions. [2022-02-24 01:34:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-02-24 01:34:31,883 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:31,883 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-24 01:34:31,883 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -32032850, now seen corresponding path program 87 times [2022-02-24 01:34:31,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:31,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123183828] [2022-02-24 01:34:31,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:31,888 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:31,888 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:31,888 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-02-24 01:34:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:34:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:34:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:34:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:34:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:34:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:34:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:34:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:34:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:34:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:34:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:34:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:34:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:34:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:34:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:34:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:34:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:34:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:34:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:34:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:34:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:34:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:34:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:34:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:34:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:34:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:34:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:34:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:34:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:34:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:34:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:34:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:34:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:34:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:34:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:34:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:34:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:34:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:34:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:34:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:34:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:34:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:34:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:34:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:33,750 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 01:34:33,750 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:33,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123183828] [2022-02-24 01:34:33,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2123183828] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:33,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:33,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [94] imperfect sequences [] total 94 [2022-02-24 01:34:33,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298562973] [2022-02-24 01:34:33,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:33,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-24 01:34:33,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:33,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-24 01:34:33,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2122, Invalid=6620, Unknown=0, NotChecked=0, Total=8742 [2022-02-24 01:34:33,753 INFO L87 Difference]: Start difference. First operand 457 states and 458 transitions. Second operand has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 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 01:34:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:36,778 INFO L93 Difference]: Finished difference Result 648 states and 694 transitions. [2022-02-24 01:34:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-24 01:34:36,779 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 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 454 [2022-02-24 01:34:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:36,780 INFO L225 Difference]: With dead ends: 648 [2022-02-24 01:34:36,780 INFO L226 Difference]: Without dead ends: 460 [2022-02-24 01:34:36,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8183 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=6540, Invalid=27500, Unknown=0, NotChecked=0, Total=34040 [2022-02-24 01:34:36,782 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 120 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:36,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 168 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:34:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-02-24 01:34:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2022-02-24 01:34:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 365 states have (on average 1.0054794520547945) internal successors, (367), 366 states have internal predecessors, (367), 47 states have call successors, (47), 47 states have call predecessors, (47), 46 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-24 01:34:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 460 transitions. [2022-02-24 01:34:36,950 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 460 transitions. Word has length 454 [2022-02-24 01:34:36,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:36,950 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 460 transitions. [2022-02-24 01:34:36,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 2.478723404255319) internal successors, (233), 93 states have internal predecessors, (233), 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 01:34:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 460 transitions. [2022-02-24 01:34:36,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-02-24 01:34:36,952 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:36,952 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:36,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-24 01:34:36,952 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:36,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:36,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1886993780, now seen corresponding path program 88 times [2022-02-24 01:34:36,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:36,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263371276] [2022-02-24 01:34:36,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:36,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:36,956 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:36,956 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:36,956 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:34:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:34:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:34:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:34:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:34:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:34:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:34:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:34:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:34:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:34:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:34:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:34:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:34:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:34:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:34:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:34:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:34:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:34:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:34:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:34:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:34:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:34:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:34:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:34:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:34:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:34:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:34:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:34:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:34:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:34:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:34:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:34:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:34:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:34:39,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:34:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:34:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:34:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:34:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:34:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:34:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:34:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:34:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:34:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:34:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:39,465 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 01:34:39,465 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:39,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263371276] [2022-02-24 01:34:39,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1263371276] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:39,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:39,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-24 01:34:39,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098424882] [2022-02-24 01:34:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:39,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-24 01:34:39,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-24 01:34:39,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=9310, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 01:34:39,467 INFO L87 Difference]: Start difference. First operand 459 states and 460 transitions. Second operand has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 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 01:34:51,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:51,584 INFO L93 Difference]: Finished difference Result 472 states and 473 transitions. [2022-02-24 01:34:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-24 01:34:51,584 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 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 456 [2022-02-24 01:34:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:51,591 INFO L225 Difference]: With dead ends: 472 [2022-02-24 01:34:51,591 INFO L226 Difference]: Without dead ends: 470 [2022-02-24 01:34:51,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4799 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=681, Invalid=36761, Unknown=0, NotChecked=0, Total=37442 [2022-02-24 01:34:51,593 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 250 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 30920 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 31200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 30920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:51,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 531 Invalid, 31200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 30920 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-02-24 01:34:51,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-24 01:34:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 467. [2022-02-24 01:34:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 371 states have (on average 1.005390835579515) internal successors, (373), 372 states have internal predecessors, (373), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-24 01:34:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 468 transitions. [2022-02-24 01:34:51,771 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 468 transitions. Word has length 456 [2022-02-24 01:34:51,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:51,772 INFO L470 AbstractCegarLoop]: Abstraction has 467 states and 468 transitions. [2022-02-24 01:34:51,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 2.422680412371134) internal successors, (235), 96 states have internal predecessors, (235), 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 01:34:51,772 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 468 transitions. [2022-02-24 01:34:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-02-24 01:34:51,774 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:51,774 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:51,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-24 01:34:51,774 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:51,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:51,774 INFO L85 PathProgramCache]: Analyzing trace with hash 259906662, now seen corresponding path program 89 times [2022-02-24 01:34:51,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:51,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1955909735] [2022-02-24 01:34:51,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:51,778 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:51,778 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:51,778 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-02-24 01:34:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:34:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:34:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:34:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:34:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:34:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:34:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:34:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:34:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:34:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:34:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:34:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:34:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:34:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:34:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:34:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:34:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:34:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:34:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:34:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:34:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:34:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:34:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:34:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:34:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:34:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:34:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:34:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:34:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:34:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:34:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:34:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:34:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:34:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:34:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:34:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:34:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:34:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:34:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:34:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:34:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:34:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:34:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:34:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:34:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:53,974 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 01:34:53,974 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:53,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1955909735] [2022-02-24 01:34:53,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1955909735] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:53,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:53,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [96] imperfect sequences [] total 96 [2022-02-24 01:34:53,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594497279] [2022-02-24 01:34:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:53,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-24 01:34:53,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-24 01:34:53,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2215, Invalid=6905, Unknown=0, NotChecked=0, Total=9120 [2022-02-24 01:34:53,977 INFO L87 Difference]: Start difference. First operand 467 states and 468 transitions. Second operand has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 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 01:34:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:34:56,813 INFO L93 Difference]: Finished difference Result 662 states and 709 transitions. [2022-02-24 01:34:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-02-24 01:34:56,814 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 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 464 [2022-02-24 01:34:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:34:56,815 INFO L225 Difference]: With dead ends: 662 [2022-02-24 01:34:56,816 INFO L226 Difference]: Without dead ends: 470 [2022-02-24 01:34:56,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8549 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=6823, Invalid=28709, Unknown=0, NotChecked=0, Total=35532 [2022-02-24 01:34:56,818 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 122 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:34:56,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 140 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-24 01:34:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-02-24 01:34:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2022-02-24 01:34:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 373 states have (on average 1.0053619302949062) internal successors, (375), 374 states have internal predecessors, (375), 48 states have call successors, (48), 48 states have call predecessors, (48), 47 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-24 01:34:57,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 470 transitions. [2022-02-24 01:34:57,021 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 470 transitions. Word has length 464 [2022-02-24 01:34:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:34:57,021 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 470 transitions. [2022-02-24 01:34:57,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.4791666666666665) internal successors, (238), 95 states have internal predecessors, (238), 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 01:34:57,021 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 470 transitions. [2022-02-24 01:34:57,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-02-24 01:34:57,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:34:57,023 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:34:57,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-24 01:34:57,024 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:34:57,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:34:57,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1222371780, now seen corresponding path program 90 times [2022-02-24 01:34:57,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:34:57,024 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280929921] [2022-02-24 01:34:57,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:34:57,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:34:57,029 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:34:57,029 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:34:57,029 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:34:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:34:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:34:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:34:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:34:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:34:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:34:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:34:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:34:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:34:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:34:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:34:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:34:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:34:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:34:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:34:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:34:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:34:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:34:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:34:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:34:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:34:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:34:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:34:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:34:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:34:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:34:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:34:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:34:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:34:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:34:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:34:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:34:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:34:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:34:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:34:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:34:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:34:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:34:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:34:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:34:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:34:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:34:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:34:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:34:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:34:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:34:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:34:59,926 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 01:34:59,926 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:34:59,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280929921] [2022-02-24 01:34:59,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1280929921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:34:59,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:34:59,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-24 01:34:59,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176757013] [2022-02-24 01:34:59,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:34:59,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-24 01:34:59,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:34:59,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-24 01:34:59,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=9700, Unknown=0, NotChecked=0, Total=9900 [2022-02-24 01:34:59,929 INFO L87 Difference]: Start difference. First operand 469 states and 470 transitions. Second operand has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 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 01:35:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:11,608 INFO L93 Difference]: Finished difference Result 482 states and 483 transitions. [2022-02-24 01:35:11,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-24 01:35:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 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 466 [2022-02-24 01:35:11,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:11,623 INFO L225 Difference]: With dead ends: 482 [2022-02-24 01:35:11,623 INFO L226 Difference]: Without dead ends: 480 [2022-02-24 01:35:11,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4997 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=695, Invalid=38311, Unknown=0, NotChecked=0, Total=39006 [2022-02-24 01:35:11,625 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 255 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 31914 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 32200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 31914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:11,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 538 Invalid, 32200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 31914 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-02-24 01:35:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-24 01:35:11,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 477. [2022-02-24 01:35:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 379 states have (on average 1.0052770448548813) internal successors, (381), 380 states have internal predecessors, (381), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-24 01:35:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 478 transitions. [2022-02-24 01:35:11,804 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 478 transitions. Word has length 466 [2022-02-24 01:35:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:11,804 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 478 transitions. [2022-02-24 01:35:11,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 2.4242424242424243) internal successors, (240), 98 states have internal predecessors, (240), 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 01:35:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 478 transitions. [2022-02-24 01:35:11,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-02-24 01:35:11,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:11,806 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:11,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-24 01:35:11,806 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:11,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:11,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2142522270, now seen corresponding path program 91 times [2022-02-24 01:35:11,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:11,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910188908] [2022-02-24 01:35:11,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:11,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:11,810 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:11,810 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:11,810 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-02-24 01:35:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:35:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:35:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:35:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:35:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:35:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:35:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:35:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:35:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:35:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:35:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:35:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:35:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:35:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:35:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:35:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:35:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:35:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:35:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:35:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:35:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:35:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:35:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:35:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:35:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:35:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:35:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:35:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:35:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:35:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:35:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:35:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:35:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:35:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:35:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:35:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:35:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:35:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:35:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:35:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:35:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:35:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:35:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:35:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:35:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:35:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:13,796 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 01:35:13,797 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:13,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910188908] [2022-02-24 01:35:13,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1910188908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:13,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:13,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [98] imperfect sequences [] total 98 [2022-02-24 01:35:13,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376292296] [2022-02-24 01:35:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:13,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-24 01:35:13,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:13,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-24 01:35:13,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=7196, Unknown=0, NotChecked=0, Total=9506 [2022-02-24 01:35:13,798 INFO L87 Difference]: Start difference. First operand 477 states and 478 transitions. Second operand has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 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 01:35:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:17,098 INFO L93 Difference]: Finished difference Result 676 states and 724 transitions. [2022-02-24 01:35:17,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-24 01:35:17,099 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 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 474 [2022-02-24 01:35:17,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:17,101 INFO L225 Difference]: With dead ends: 676 [2022-02-24 01:35:17,101 INFO L226 Difference]: Without dead ends: 480 [2022-02-24 01:35:17,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8923 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=7112, Invalid=29944, Unknown=0, NotChecked=0, Total=37056 [2022-02-24 01:35:17,111 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 124 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:17,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 162 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:35:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-02-24 01:35:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-02-24 01:35:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 381 states have (on average 1.005249343832021) internal successors, (383), 382 states have internal predecessors, (383), 49 states have call successors, (49), 49 states have call predecessors, (49), 48 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-24 01:35:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 480 transitions. [2022-02-24 01:35:17,341 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 480 transitions. Word has length 474 [2022-02-24 01:35:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:17,342 INFO L470 AbstractCegarLoop]: Abstraction has 479 states and 480 transitions. [2022-02-24 01:35:17,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.479591836734694) internal successors, (243), 97 states have internal predecessors, (243), 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 01:35:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 480 transitions. [2022-02-24 01:35:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-02-24 01:35:17,344 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:17,344 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:17,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-24 01:35:17,344 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:17,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:17,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1688189820, now seen corresponding path program 92 times [2022-02-24 01:35:17,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:17,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141863449] [2022-02-24 01:35:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:17,350 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:17,350 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:17,350 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:35:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:35:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:35:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:35:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:35:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:35:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:35:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:35:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:35:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:35:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:35:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:35:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:35:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:35:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:35:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:35:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:35:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:35:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:35:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:35:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:35:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:35:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:35:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:35:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:35:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:35:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:35:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:35:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:35:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:35:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:35:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:35:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:35:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:35:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:35:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:35:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:35:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:35:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:35:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:35:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:35:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:35:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:35:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:35:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:35:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:35:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:21,527 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 01:35:21,527 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:21,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141863449] [2022-02-24 01:35:21,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2141863449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:21,527 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:21,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-24 01:35:21,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327061054] [2022-02-24 01:35:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:21,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-24 01:35:21,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-24 01:35:21,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=10098, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 01:35:21,530 INFO L87 Difference]: Start difference. First operand 479 states and 480 transitions. Second operand has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 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 01:35:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:33,869 INFO L93 Difference]: Finished difference Result 492 states and 493 transitions. [2022-02-24 01:35:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-24 01:35:33,870 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 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 476 [2022-02-24 01:35:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:33,872 INFO L225 Difference]: With dead ends: 492 [2022-02-24 01:35:33,872 INFO L226 Difference]: Without dead ends: 490 [2022-02-24 01:35:33,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5199 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=709, Invalid=39893, Unknown=0, NotChecked=0, Total=40602 [2022-02-24 01:35:33,874 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 260 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 33265 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 33557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 33265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:33,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 549 Invalid, 33557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 33265 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-02-24 01:35:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-24 01:35:34,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 487. [2022-02-24 01:35:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 387 states have (on average 1.0051679586563307) internal successors, (389), 388 states have internal predecessors, (389), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-24 01:35:34,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 488 transitions. [2022-02-24 01:35:34,089 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 488 transitions. Word has length 476 [2022-02-24 01:35:34,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:34,089 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 488 transitions. [2022-02-24 01:35:34,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 2.4257425742574257) internal successors, (245), 100 states have internal predecessors, (245), 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 01:35:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 488 transitions. [2022-02-24 01:35:34,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-02-24 01:35:34,091 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:34,091 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:34,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-24 01:35:34,092 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:34,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1740184234, now seen corresponding path program 93 times [2022-02-24 01:35:34,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:34,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117335880] [2022-02-24 01:35:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:34,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:34,096 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:34,096 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:34,096 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:36,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-02-24 01:35:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:35:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:35:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:35:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:35:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:35:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:35:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:35:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:35:36,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:35:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:35:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:35:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:35:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:35:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:35:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:35:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:35:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:35:36,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:35:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:35:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:35:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:35:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:35:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:35:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:35:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:35:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:35:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:35:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:35:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:35:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:35:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:35:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:35:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:35:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:35:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:35:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:35:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:35:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:35:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:35:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:35:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:35:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:35:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:35:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:35:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:35:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:35:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:36,145 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 01:35:36,146 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:36,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117335880] [2022-02-24 01:35:36,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1117335880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:36,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:36,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [100] imperfect sequences [] total 100 [2022-02-24 01:35:36,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210441576] [2022-02-24 01:35:36,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:36,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-24 01:35:36,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:36,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-24 01:35:36,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2407, Invalid=7493, Unknown=0, NotChecked=0, Total=9900 [2022-02-24 01:35:36,149 INFO L87 Difference]: Start difference. First operand 487 states and 488 transitions. Second operand has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 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 01:35:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:39,280 INFO L93 Difference]: Finished difference Result 690 states and 739 transitions. [2022-02-24 01:35:39,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-02-24 01:35:39,281 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 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 484 [2022-02-24 01:35:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:39,282 INFO L225 Difference]: With dead ends: 690 [2022-02-24 01:35:39,282 INFO L226 Difference]: Without dead ends: 490 [2022-02-24 01:35:39,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9305 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=7407, Invalid=31205, Unknown=0, NotChecked=0, Total=38612 [2022-02-24 01:35:39,285 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 126 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:39,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 154 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:35:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2022-02-24 01:35:39,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2022-02-24 01:35:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 389 states have (on average 1.0051413881748072) internal successors, (391), 390 states have internal predecessors, (391), 50 states have call successors, (50), 50 states have call predecessors, (50), 49 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-24 01:35:39,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 490 transitions. [2022-02-24 01:35:39,515 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 490 transitions. Word has length 484 [2022-02-24 01:35:39,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:39,515 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 490 transitions. [2022-02-24 01:35:39,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 2.48) internal successors, (248), 99 states have internal predecessors, (248), 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 01:35:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 490 transitions. [2022-02-24 01:35:39,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-02-24 01:35:39,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:39,517 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:39,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-24 01:35:39,518 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:39,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash -616130636, now seen corresponding path program 94 times [2022-02-24 01:35:39,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:39,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911771556] [2022-02-24 01:35:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:39,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:39,523 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:39,523 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:39,523 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:43,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:35:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:35:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:35:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:35:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:35:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:35:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:35:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:35:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:35:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:35:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:35:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:35:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:35:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:35:43,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:35:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:35:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:35:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:35:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:35:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:35:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:35:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:35:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:35:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:35:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:35:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:35:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:35:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:35:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:35:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:35:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:35:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:35:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:35:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:35:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:35:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:35:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:35:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:35:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:35:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:35:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:35:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:35:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:35:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:35:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:35:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:35:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:35:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:43,969 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 01:35:43,969 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:43,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911771556] [2022-02-24 01:35:43,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [911771556] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:43,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:43,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-24 01:35:43,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903772581] [2022-02-24 01:35:43,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:43,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-24 01:35:43,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-24 01:35:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=10504, Unknown=0, NotChecked=0, Total=10712 [2022-02-24 01:35:43,972 INFO L87 Difference]: Start difference. First operand 489 states and 490 transitions. Second operand has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 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 01:35:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:35:57,403 INFO L93 Difference]: Finished difference Result 502 states and 503 transitions. [2022-02-24 01:35:57,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-24 01:35:57,404 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 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 486 [2022-02-24 01:35:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:35:57,405 INFO L225 Difference]: With dead ends: 502 [2022-02-24 01:35:57,405 INFO L226 Difference]: Without dead ends: 500 [2022-02-24 01:35:57,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5405 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=723, Invalid=41507, Unknown=0, NotChecked=0, Total=42230 [2022-02-24 01:35:57,407 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 265 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 34994 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 35292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 34994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:35:57,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 564 Invalid, 35292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 34994 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-02-24 01:35:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-24 01:35:57,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 497. [2022-02-24 01:35:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 395 states have (on average 1.0050632911392405) internal successors, (397), 396 states have internal predecessors, (397), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-24 01:35:57,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 498 transitions. [2022-02-24 01:35:57,621 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 498 transitions. Word has length 486 [2022-02-24 01:35:57,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:35:57,621 INFO L470 AbstractCegarLoop]: Abstraction has 497 states and 498 transitions. [2022-02-24 01:35:57,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 2.4271844660194173) internal successors, (250), 102 states have internal predecessors, (250), 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 01:35:57,621 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 498 transitions. [2022-02-24 01:35:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-02-24 01:35:57,623 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:35:57,623 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:35:57,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-24 01:35:57,623 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:35:57,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:35:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1196034446, now seen corresponding path program 95 times [2022-02-24 01:35:57,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:35:57,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652942553] [2022-02-24 01:35:57,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:35:57,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:35:57,628 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:35:57,628 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:35:57,628 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:35:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:35:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-02-24 01:35:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:35:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:35:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:35:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:35:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:35:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:35:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:35:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:35:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:35:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:35:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:35:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:35:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:35:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:35:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:35:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:35:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:35:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:35:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:35:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:35:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:35:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:35:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:35:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:35:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:35:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:35:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:35:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:35:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:35:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:35:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:35:59,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:35:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:35:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:35:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:35:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:35:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:35:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:35:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:35:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:35:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:35:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:35:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:35:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:35:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:35:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:35:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:35:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:35:59,476 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 01:35:59,476 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:35:59,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652942553] [2022-02-24 01:35:59,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [652942553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:35:59,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:35:59,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102 [2022-02-24 01:35:59,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542418721] [2022-02-24 01:35:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:35:59,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-02-24 01:35:59,477 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:35:59,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-02-24 01:35:59,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2506, Invalid=7796, Unknown=0, NotChecked=0, Total=10302 [2022-02-24 01:35:59,480 INFO L87 Difference]: Start difference. First operand 497 states and 498 transitions. Second operand has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 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 01:36:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:03,500 INFO L93 Difference]: Finished difference Result 704 states and 754 transitions. [2022-02-24 01:36:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-24 01:36:03,501 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 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 494 [2022-02-24 01:36:03,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:03,503 INFO L225 Difference]: With dead ends: 704 [2022-02-24 01:36:03,503 INFO L226 Difference]: Without dead ends: 500 [2022-02-24 01:36:03,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9695 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=7708, Invalid=32492, Unknown=0, NotChecked=0, Total=40200 [2022-02-24 01:36:03,506 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 128 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:03,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 166 Invalid, 3003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:36:03,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-02-24 01:36:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 499. [2022-02-24 01:36:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 397 states have (on average 1.0050377833753148) internal successors, (399), 398 states have internal predecessors, (399), 51 states have call successors, (51), 51 states have call predecessors, (51), 50 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-24 01:36:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 500 transitions. [2022-02-24 01:36:03,776 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 500 transitions. Word has length 494 [2022-02-24 01:36:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:03,776 INFO L470 AbstractCegarLoop]: Abstraction has 499 states and 500 transitions. [2022-02-24 01:36:03,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 2.480392156862745) internal successors, (253), 101 states have internal predecessors, (253), 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 01:36:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 500 transitions. [2022-02-24 01:36:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-02-24 01:36:03,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:03,779 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:03,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-24 01:36:03,780 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:03,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash -942875028, now seen corresponding path program 96 times [2022-02-24 01:36:03,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:03,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342300976] [2022-02-24 01:36:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:03,788 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:03,788 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:03,788 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:36:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:36:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:36:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:36:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:36:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:36:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:36:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:36:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:36:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:36:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:36:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:36:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:36:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:36:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:36:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:36:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:36:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:36:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:36:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:36:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:36:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:36:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:36:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:36:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:36:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:36:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:36:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:36:08,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:36:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:36:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:36:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:36:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:36:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:36:08,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:36:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:36:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:36:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:36:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:36:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:36:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:36:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:36:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:36:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:36:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:36:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:36:08,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:36:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:36:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:08,268 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 01:36:08,268 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:08,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342300976] [2022-02-24 01:36:08,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1342300976] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:08,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:08,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-24 01:36:08,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113857017] [2022-02-24 01:36:08,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:08,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-24 01:36:08,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:08,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-24 01:36:08,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=10918, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 01:36:08,282 INFO L87 Difference]: Start difference. First operand 499 states and 500 transitions. Second operand has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 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 01:36:22,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:22,192 INFO L93 Difference]: Finished difference Result 512 states and 513 transitions. [2022-02-24 01:36:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-24 01:36:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 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 496 [2022-02-24 01:36:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:22,194 INFO L225 Difference]: With dead ends: 512 [2022-02-24 01:36:22,194 INFO L226 Difference]: Without dead ends: 510 [2022-02-24 01:36:22,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5615 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=737, Invalid=43153, Unknown=0, NotChecked=0, Total=43890 [2022-02-24 01:36:22,197 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 36564 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 36868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 36564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:22,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 579 Invalid, 36868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [304 Valid, 36564 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-24 01:36:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-24 01:36:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 507. [2022-02-24 01:36:22,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 403 states have (on average 1.0049627791563276) internal successors, (405), 404 states have internal predecessors, (405), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-24 01:36:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 508 transitions. [2022-02-24 01:36:22,428 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 508 transitions. Word has length 496 [2022-02-24 01:36:22,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:22,429 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 508 transitions. [2022-02-24 01:36:22,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 105 states have (on average 2.4285714285714284) internal successors, (255), 104 states have internal predecessors, (255), 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 01:36:22,429 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 508 transitions. [2022-02-24 01:36:22,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-02-24 01:36:22,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:22,431 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:22,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-24 01:36:22,431 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:22,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:22,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1789257658, now seen corresponding path program 97 times [2022-02-24 01:36:22,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:22,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451203639] [2022-02-24 01:36:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:22,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:22,436 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:22,436 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:22,436 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-02-24 01:36:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:36:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:36:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:36:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:36:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:36:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:36:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:36:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:36:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:36:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:36:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:36:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:36:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:36:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:36:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:36:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:36:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:36:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:36:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:36:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:36:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:36:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:36:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:36:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:36:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:36:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:36:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:36:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:36:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:36:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:36:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:36:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:36:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:36:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:36:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:36:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:36:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:36:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:36:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:36:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:36:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:36:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:36:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:36:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:36:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:36:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:36:24,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:36:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:36:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:24,971 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 01:36:24,971 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:24,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451203639] [2022-02-24 01:36:24,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [451203639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:24,972 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:24,972 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [104] imperfect sequences [] total 104 [2022-02-24 01:36:24,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440636838] [2022-02-24 01:36:24,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:24,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-02-24 01:36:24,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:24,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-02-24 01:36:24,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2607, Invalid=8105, Unknown=0, NotChecked=0, Total=10712 [2022-02-24 01:36:24,974 INFO L87 Difference]: Start difference. First operand 507 states and 508 transitions. Second operand has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 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 01:36:28,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:28,501 INFO L93 Difference]: Finished difference Result 718 states and 769 transitions. [2022-02-24 01:36:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-24 01:36:28,501 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 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 504 [2022-02-24 01:36:28,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:28,503 INFO L225 Difference]: With dead ends: 718 [2022-02-24 01:36:28,503 INFO L226 Difference]: Without dead ends: 510 [2022-02-24 01:36:28,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10093 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=8015, Invalid=33805, Unknown=0, NotChecked=0, Total=41820 [2022-02-24 01:36:28,505 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 130 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:28,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 173 Invalid, 2946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:36:28,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-02-24 01:36:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 509. [2022-02-24 01:36:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 405 states have (on average 1.0049382716049382) internal successors, (407), 406 states have internal predecessors, (407), 52 states have call successors, (52), 52 states have call predecessors, (52), 51 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-24 01:36:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 510 transitions. [2022-02-24 01:36:28,788 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 510 transitions. Word has length 504 [2022-02-24 01:36:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:28,788 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 510 transitions. [2022-02-24 01:36:28,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 2.480769230769231) internal successors, (258), 103 states have internal predecessors, (258), 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 01:36:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 510 transitions. [2022-02-24 01:36:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-02-24 01:36:28,792 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:28,793 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:28,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-24 01:36:28,793 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1572269988, now seen corresponding path program 98 times [2022-02-24 01:36:28,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:28,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911184210] [2022-02-24 01:36:28,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:28,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:28,818 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:28,818 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:28,818 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:36:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:36:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:36:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:36:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:36:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:36:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:36:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:36:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:36:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:36:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:36:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:36:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:36:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:36:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:36:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:36:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:36:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:36:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:36:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:36:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:36:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:36:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:36:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:36:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:36:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:36:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:36:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:36:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:36:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:36:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:36:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:36:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:36:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:36:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:36:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:36:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:36:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:36:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:36:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:36:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:36:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:36:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:36:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:36:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:36:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:36:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:36:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:36:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:36:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:32,202 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 01:36:32,202 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:32,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911184210] [2022-02-24 01:36:32,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [911184210] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:32,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:32,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-24 01:36:32,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273018556] [2022-02-24 01:36:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:32,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-24 01:36:32,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-24 01:36:32,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=11340, Unknown=0, NotChecked=0, Total=11556 [2022-02-24 01:36:32,204 INFO L87 Difference]: Start difference. First operand 509 states and 510 transitions. Second operand has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 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 01:36:45,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:45,841 INFO L93 Difference]: Finished difference Result 522 states and 523 transitions. [2022-02-24 01:36:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-24 01:36:45,842 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 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 506 [2022-02-24 01:36:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:45,852 INFO L225 Difference]: With dead ends: 522 [2022-02-24 01:36:45,852 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 01:36:45,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5829 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=751, Invalid=44831, Unknown=0, NotChecked=0, Total=45582 [2022-02-24 01:36:45,855 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 275 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 38009 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 38319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 38009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:45,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 590 Invalid, 38319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 38009 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-02-24 01:36:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 01:36:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2022-02-24 01:36:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.0048661800486618) internal successors, (413), 412 states have internal predecessors, (413), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-24 01:36:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 518 transitions. [2022-02-24 01:36:46,080 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 518 transitions. Word has length 506 [2022-02-24 01:36:46,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:46,080 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 518 transitions. [2022-02-24 01:36:46,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 107 states have (on average 2.4299065420560746) internal successors, (260), 106 states have internal predecessors, (260), 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 01:36:46,080 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 518 transitions. [2022-02-24 01:36:46,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2022-02-24 01:36:46,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:46,082 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:46,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-24 01:36:46,082 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:46,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:46,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1684311682, now seen corresponding path program 99 times [2022-02-24 01:36:46,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:46,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298466613] [2022-02-24 01:36:46,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:46,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:46,087 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:46,087 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:46,087 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-02-24 01:36:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:36:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:36:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:36:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:36:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:36:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:36:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:36:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:36:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:36:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:36:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:36:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:36:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:36:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:36:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:36:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:36:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:36:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:36:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:36:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:36:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:36:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:36:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:36:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:36:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:36:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:36:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:36:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:36:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:36:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:36:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:36:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:36:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:36:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:36:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:36:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:36:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:36:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:36:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:36:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:36:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:36:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:36:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:36:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:36:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:36:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:36:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:36:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:36:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:36:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:48,987 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 01:36:48,987 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:48,987 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298466613] [2022-02-24 01:36:48,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1298466613] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:48,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:48,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [106] imperfect sequences [] total 106 [2022-02-24 01:36:48,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615359042] [2022-02-24 01:36:48,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:48,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 106 states [2022-02-24 01:36:48,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:48,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2022-02-24 01:36:48,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2710, Invalid=8420, Unknown=0, NotChecked=0, Total=11130 [2022-02-24 01:36:48,991 INFO L87 Difference]: Start difference. First operand 517 states and 518 transitions. Second operand has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 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 01:36:52,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:36:52,528 INFO L93 Difference]: Finished difference Result 732 states and 784 transitions. [2022-02-24 01:36:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-02-24 01:36:52,529 INFO L78 Accepts]: Start accepts. Automaton has has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 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 514 [2022-02-24 01:36:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:36:52,531 INFO L225 Difference]: With dead ends: 732 [2022-02-24 01:36:52,531 INFO L226 Difference]: Without dead ends: 520 [2022-02-24 01:36:52,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10499 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=8328, Invalid=35144, Unknown=0, NotChecked=0, Total=43472 [2022-02-24 01:36:52,534 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 132 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:36:52,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 165 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-24 01:36:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2022-02-24 01:36:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 519. [2022-02-24 01:36:52,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 413 states have (on average 1.0048426150121066) internal successors, (415), 414 states have internal predecessors, (415), 53 states have call successors, (53), 53 states have call predecessors, (53), 52 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-24 01:36:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 520 transitions. [2022-02-24 01:36:52,807 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 520 transitions. Word has length 514 [2022-02-24 01:36:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:36:52,807 INFO L470 AbstractCegarLoop]: Abstraction has 519 states and 520 transitions. [2022-02-24 01:36:52,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 106 states, 106 states have (on average 2.481132075471698) internal successors, (263), 105 states have internal predecessors, (263), 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 01:36:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 520 transitions. [2022-02-24 01:36:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-02-24 01:36:52,810 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:36:52,810 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:36:52,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-24 01:36:52,810 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:36:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:36:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1594960732, now seen corresponding path program 100 times [2022-02-24 01:36:52,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:36:52,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617679310] [2022-02-24 01:36:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:36:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:36:52,817 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:36:52,817 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:36:52,817 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:36:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:36:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:36:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:36:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:36:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:36:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:36:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:36:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:36:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:36:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:36:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:36:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:36:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:36:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:36:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:36:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:36:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:36:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:36:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:36:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:36:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:36:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:36:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:36:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:36:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:36:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:36:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:36:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:36:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:36:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:36:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:36:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:36:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:36:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:36:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:36:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:36:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:36:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:36:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:36:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:36:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:36:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:36:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:36:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:36:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:36:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:36:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:36:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:36:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:36:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:36:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:36:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:36:56,461 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 01:36:56,462 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:36:56,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617679310] [2022-02-24 01:36:56,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [617679310] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:36:56,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:36:56,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-24 01:36:56,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330873227] [2022-02-24 01:36:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:36:56,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-24 01:36:56,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:36:56,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-24 01:36:56,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=11770, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 01:36:56,465 INFO L87 Difference]: Start difference. First operand 519 states and 520 transitions. Second operand has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 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 01:37:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:10,599 INFO L93 Difference]: Finished difference Result 532 states and 533 transitions. [2022-02-24 01:37:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-24 01:37:10,599 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 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 516 [2022-02-24 01:37:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:10,601 INFO L225 Difference]: With dead ends: 532 [2022-02-24 01:37:10,601 INFO L226 Difference]: Without dead ends: 530 [2022-02-24 01:37:10,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6047 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=765, Invalid=46541, Unknown=0, NotChecked=0, Total=47306 [2022-02-24 01:37:10,604 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 280 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 38949 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 39265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 38949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:10,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 593 Invalid, 39265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 38949 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-02-24 01:37:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-24 01:37:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 527. [2022-02-24 01:37:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 419 states have (on average 1.0047732696897376) internal successors, (421), 420 states have internal predecessors, (421), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-24 01:37:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 528 transitions. [2022-02-24 01:37:10,850 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 528 transitions. Word has length 516 [2022-02-24 01:37:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:10,851 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 528 transitions. [2022-02-24 01:37:10,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 109 states have (on average 2.4311926605504586) internal successors, (265), 108 states have internal predecessors, (265), 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 01:37:10,851 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 528 transitions. [2022-02-24 01:37:10,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-24 01:37:10,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:10,853 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:10,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-24 01:37:10,854 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:10,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash -105220810, now seen corresponding path program 101 times [2022-02-24 01:37:10,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:10,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417039444] [2022-02-24 01:37:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:10,859 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:10,859 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:10,859 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-02-24 01:37:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:37:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:37:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:37:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:37:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:37:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:37:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:37:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:37:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:37:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:37:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:37:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:37:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:37:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:37:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:37:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:37:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:37:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:37:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:37:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:37:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:37:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:37:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:37:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:37:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:37:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:37:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:37:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:37:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:37:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:37:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:37:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:37:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:37:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:37:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:37:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:37:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:37:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:37:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:37:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:37:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:37:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:37:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:37:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:37:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:37:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:37:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:37:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:37:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:37:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 01:37:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:12,976 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 01:37:12,976 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:12,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417039444] [2022-02-24 01:37:12,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [417039444] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:12,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:12,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [108] imperfect sequences [] total 108 [2022-02-24 01:37:12,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862392709] [2022-02-24 01:37:12,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:12,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-02-24 01:37:12,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-02-24 01:37:12,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2815, Invalid=8741, Unknown=0, NotChecked=0, Total=11556 [2022-02-24 01:37:12,978 INFO L87 Difference]: Start difference. First operand 527 states and 528 transitions. Second operand has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 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 01:37:16,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:16,786 INFO L93 Difference]: Finished difference Result 746 states and 799 transitions. [2022-02-24 01:37:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-24 01:37:16,786 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 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 524 [2022-02-24 01:37:16,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:16,801 INFO L225 Difference]: With dead ends: 746 [2022-02-24 01:37:16,801 INFO L226 Difference]: Without dead ends: 530 [2022-02-24 01:37:16,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10913 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=8647, Invalid=36509, Unknown=0, NotChecked=0, Total=45156 [2022-02-24 01:37:16,810 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 134 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:16,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 187 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 01:37:16,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-02-24 01:37:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2022-02-24 01:37:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 421 states have (on average 1.004750593824228) internal successors, (423), 422 states have internal predecessors, (423), 54 states have call successors, (54), 54 states have call predecessors, (54), 53 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-24 01:37:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 530 transitions. [2022-02-24 01:37:17,152 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 530 transitions. Word has length 524 [2022-02-24 01:37:17,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:17,161 INFO L470 AbstractCegarLoop]: Abstraction has 529 states and 530 transitions. [2022-02-24 01:37:17,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 2.4814814814814814) internal successors, (268), 107 states have internal predecessors, (268), 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 01:37:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 530 transitions. [2022-02-24 01:37:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-02-24 01:37:17,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:17,164 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:17,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-24 01:37:17,164 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:17,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash 309326228, now seen corresponding path program 102 times [2022-02-24 01:37:17,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:17,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642089535] [2022-02-24 01:37:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:17,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:17,170 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:17,170 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:17,170 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:37:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:37:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:37:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:37:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:37:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:37:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:37:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:37:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:37:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:37:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:37:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:37:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:37:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:37:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:37:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:37:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:37:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:37:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:37:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:37:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:37:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:37:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:37:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:37:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:37:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:37:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:37:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:37:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:37:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:37:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:37:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:37:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:37:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:37:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:37:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:37:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:37:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:37:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:37:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:37:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:37:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:37:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:37:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:37:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:37:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:37:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:37:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:37:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:37:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:37:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:37:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:21,342 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 01:37:21,342 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:21,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642089535] [2022-02-24 01:37:21,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1642089535] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:21,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:21,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-24 01:37:21,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924924392] [2022-02-24 01:37:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:21,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-24 01:37:21,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:21,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-24 01:37:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=12208, Unknown=0, NotChecked=0, Total=12432 [2022-02-24 01:37:21,345 INFO L87 Difference]: Start difference. First operand 529 states and 530 transitions. Second operand has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 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 01:37:36,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:36,278 INFO L93 Difference]: Finished difference Result 542 states and 543 transitions. [2022-02-24 01:37:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-24 01:37:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 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 526 [2022-02-24 01:37:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:36,280 INFO L225 Difference]: With dead ends: 542 [2022-02-24 01:37:36,280 INFO L226 Difference]: Without dead ends: 540 [2022-02-24 01:37:36,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6269 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=779, Invalid=48283, Unknown=0, NotChecked=0, Total=49062 [2022-02-24 01:37:36,299 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 285 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 40983 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 41305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 40983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:36,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 612 Invalid, 41305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 40983 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-02-24 01:37:36,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-24 01:37:36,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2022-02-24 01:37:36,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 427 states have (on average 1.0046838407494145) internal successors, (429), 428 states have internal predecessors, (429), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-24 01:37:36,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 538 transitions. [2022-02-24 01:37:36,552 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 538 transitions. Word has length 526 [2022-02-24 01:37:36,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:36,552 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 538 transitions. [2022-02-24 01:37:36,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 111 states have (on average 2.4324324324324325) internal successors, (270), 110 states have internal predecessors, (270), 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 01:37:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 538 transitions. [2022-02-24 01:37:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-02-24 01:37:36,554 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:36,554 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:36,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-24 01:37:36,554 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:36,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:36,555 INFO L85 PathProgramCache]: Analyzing trace with hash -873757842, now seen corresponding path program 103 times [2022-02-24 01:37:36,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:36,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951941352] [2022-02-24 01:37:36,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:36,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:36,559 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:36,559 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:36,559 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-02-24 01:37:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:37:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:37:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:37:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:37:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:37:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:37:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:37:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:37:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:37:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:37:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:37:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:37:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:37:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:37:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:37:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:37:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:37:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:37:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:37:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:37:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:37:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:37:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:37:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:37:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:37:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:37:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:37:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:37:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:37:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:37:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:37:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:37:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:37:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:37:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:37:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:37:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:37:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:37:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:37:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:37:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:37:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:37:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:37:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:37:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:37:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:37:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:37:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:37:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:37:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:37:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 01:37:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:38,498 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 01:37:38,498 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:38,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951941352] [2022-02-24 01:37:38,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1951941352] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:38,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:38,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [110] imperfect sequences [] total 110 [2022-02-24 01:37:38,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572164941] [2022-02-24 01:37:38,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:38,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-24 01:37:38,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:38,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-24 01:37:38,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2922, Invalid=9068, Unknown=0, NotChecked=0, Total=11990 [2022-02-24 01:37:38,503 INFO L87 Difference]: Start difference. First operand 537 states and 538 transitions. Second operand has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 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 01:37:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:37:42,385 INFO L93 Difference]: Finished difference Result 760 states and 814 transitions. [2022-02-24 01:37:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-02-24 01:37:42,386 INFO L78 Accepts]: Start accepts. Automaton has has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 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 534 [2022-02-24 01:37:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:37:42,387 INFO L225 Difference]: With dead ends: 760 [2022-02-24 01:37:42,387 INFO L226 Difference]: Without dead ends: 540 [2022-02-24 01:37:42,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11335 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=8972, Invalid=37900, Unknown=0, NotChecked=0, Total=46872 [2022-02-24 01:37:42,390 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 136 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3009 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 3009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:37:42,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 179 Invalid, 3231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 3009 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-24 01:37:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-02-24 01:37:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539. [2022-02-24 01:37:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 429 states have (on average 1.0046620046620047) internal successors, (431), 430 states have internal predecessors, (431), 55 states have call successors, (55), 55 states have call predecessors, (55), 54 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-24 01:37:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 540 transitions. [2022-02-24 01:37:42,673 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 540 transitions. Word has length 534 [2022-02-24 01:37:42,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:37:42,674 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 540 transitions. [2022-02-24 01:37:42,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.481818181818182) internal successors, (273), 109 states have internal predecessors, (273), 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 01:37:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 540 transitions. [2022-02-24 01:37:42,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2022-02-24 01:37:42,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:37:42,676 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:37:42,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-24 01:37:42,676 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:37:42,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:37:42,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1192254900, now seen corresponding path program 104 times [2022-02-24 01:37:42,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:37:42,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683401025] [2022-02-24 01:37:42,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:37:42,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:37:42,681 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:37:42,681 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:37:42,681 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:37:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:37:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:37:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:37:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:37:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:37:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:37:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:37:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:37:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:37:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:37:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:37:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:37:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:37:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:37:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:37:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:37:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:37:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:37:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:37:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:37:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:37:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:37:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:37:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:37:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:37:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:37:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:37:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:37:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:37:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:37:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:37:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:37:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:37:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:37:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:37:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:37:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:37:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:37:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:37:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:37:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:37:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:37:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:37:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:37:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:37:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:37:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:37:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:37:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:37:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:37:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:37:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:37:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:37:46,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:37:46,530 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 01:37:46,530 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:37:46,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683401025] [2022-02-24 01:37:46,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [683401025] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:37:46,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:37:46,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [114] imperfect sequences [] total 114 [2022-02-24 01:37:46,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417182887] [2022-02-24 01:37:46,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:37:46,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-02-24 01:37:46,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:37:46,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-02-24 01:37:46,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=12654, Unknown=0, NotChecked=0, Total=12882 [2022-02-24 01:37:46,533 INFO L87 Difference]: Start difference. First operand 539 states and 540 transitions. Second operand has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 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 01:38:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:38:02,102 INFO L93 Difference]: Finished difference Result 552 states and 553 transitions. [2022-02-24 01:38:02,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-24 01:38:02,102 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 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 536 [2022-02-24 01:38:02,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:38:02,104 INFO L225 Difference]: With dead ends: 552 [2022-02-24 01:38:02,104 INFO L226 Difference]: Without dead ends: 550 [2022-02-24 01:38:02,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6495 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=793, Invalid=50057, Unknown=0, NotChecked=0, Total=50850 [2022-02-24 01:38:02,107 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 290 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 42127 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 42455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 42127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:38:02,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 619 Invalid, 42455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [328 Valid, 42127 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-02-24 01:38:02,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-24 01:38:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 547. [2022-02-24 01:38:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 435 states have (on average 1.0045977011494254) internal successors, (437), 436 states have internal predecessors, (437), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 01:38:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 548 transitions. [2022-02-24 01:38:02,484 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 548 transitions. Word has length 536 [2022-02-24 01:38:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:38:02,484 INFO L470 AbstractCegarLoop]: Abstraction has 547 states and 548 transitions. [2022-02-24 01:38:02,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 113 states have (on average 2.433628318584071) internal successors, (275), 112 states have internal predecessors, (275), 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 01:38:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 548 transitions. [2022-02-24 01:38:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-02-24 01:38:02,487 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:38:02,487 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:38:02,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-24 01:38:02,487 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:38:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:38:02,488 INFO L85 PathProgramCache]: Analyzing trace with hash 552270886, now seen corresponding path program 105 times [2022-02-24 01:38:02,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:38:02,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683245274] [2022-02-24 01:38:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:38:02,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:38:02,494 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:38:02,494 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:38:02,494 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:38:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:38:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-02-24 01:38:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:38:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:38:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:38:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:38:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:38:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:38:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:38:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:38:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:38:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:38:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:38:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:38:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:38:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:38:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:38:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:38:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:38:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:38:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:38:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:38:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:38:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:38:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:38:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:38:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:38:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:38:05,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:38:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:38:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:38:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:38:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:38:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:38:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:38:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:38:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:38:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:38:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:38:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:38:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:38:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:38:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:38:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:38:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:38:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:38:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:38:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:38:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:38:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:38:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:38:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:38:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:38:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 01:38:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:05,874 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 01:38:05,874 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:38:05,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683245274] [2022-02-24 01:38:05,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [683245274] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:38:05,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:38:05,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [112] imperfect sequences [] total 112 [2022-02-24 01:38:05,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189019641] [2022-02-24 01:38:05,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:38:05,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2022-02-24 01:38:05,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:38:05,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2022-02-24 01:38:05,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3031, Invalid=9401, Unknown=0, NotChecked=0, Total=12432 [2022-02-24 01:38:05,877 INFO L87 Difference]: Start difference. First operand 547 states and 548 transitions. Second operand has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 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 01:38:11,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:38:11,125 INFO L93 Difference]: Finished difference Result 774 states and 829 transitions. [2022-02-24 01:38:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-24 01:38:11,126 INFO L78 Accepts]: Start accepts. Automaton has has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 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 544 [2022-02-24 01:38:11,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:38:11,127 INFO L225 Difference]: With dead ends: 774 [2022-02-24 01:38:11,127 INFO L226 Difference]: Without dead ends: 550 [2022-02-24 01:38:11,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11765 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=9303, Invalid=39317, Unknown=0, NotChecked=0, Total=48620 [2022-02-24 01:38:11,142 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 138 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-24 01:38:11,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 171 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-24 01:38:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-24 01:38:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 549. [2022-02-24 01:38:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 437 states have (on average 1.0045766590389016) internal successors, (439), 438 states have internal predecessors, (439), 56 states have call successors, (56), 56 states have call predecessors, (56), 55 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-24 01:38:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 550 transitions. [2022-02-24 01:38:11,386 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 550 transitions. Word has length 544 [2022-02-24 01:38:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:38:11,387 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 550 transitions. [2022-02-24 01:38:11,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 2.482142857142857) internal successors, (278), 111 states have internal predecessors, (278), 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 01:38:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 550 transitions. [2022-02-24 01:38:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-24 01:38:11,389 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:38:11,389 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:38:11,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-24 01:38:11,389 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:38:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:38:11,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2076926588, now seen corresponding path program 106 times [2022-02-24 01:38:11,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:38:11,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099671524] [2022-02-24 01:38:11,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:38:11,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:38:11,394 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:38:11,394 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:38:11,394 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:38:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:38:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:38:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:38:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:38:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:38:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:38:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:38:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:38:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:38:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:38:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:38:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:38:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:38:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:38:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:38:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:38:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:38:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:38:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:38:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:38:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:38:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:38:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:38:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:38:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:38:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:38:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:38:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:38:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:38:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:38:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:38:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:38:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:38:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:38:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:38:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:38:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:38:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:38:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:38:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:38:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:38:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:38:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:38:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:38:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:38:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:38:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:38:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:38:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:38:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:38:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:38:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:38:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:38:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:38:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:16,491 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 01:38:16,492 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:38:16,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099671524] [2022-02-24 01:38:16,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1099671524] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:38:16,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:38:16,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [116] imperfect sequences [] total 116 [2022-02-24 01:38:16,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684321967] [2022-02-24 01:38:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:38:16,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-24 01:38:16,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:38:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-24 01:38:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=13108, Unknown=0, NotChecked=0, Total=13340 [2022-02-24 01:38:16,493 INFO L87 Difference]: Start difference. First operand 549 states and 550 transitions. Second operand has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 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 01:38:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:38:32,703 INFO L93 Difference]: Finished difference Result 562 states and 563 transitions. [2022-02-24 01:38:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-02-24 01:38:32,703 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 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 546 [2022-02-24 01:38:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:38:32,704 INFO L225 Difference]: With dead ends: 562 [2022-02-24 01:38:32,704 INFO L226 Difference]: Without dead ends: 560 [2022-02-24 01:38:32,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6725 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=807, Invalid=51863, Unknown=0, NotChecked=0, Total=52670 [2022-02-24 01:38:32,707 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 295 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 43506 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 43840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 43506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:38:32,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 626 Invalid, 43840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [334 Valid, 43506 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2022-02-24 01:38:32,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-02-24 01:38:32,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2022-02-24 01:38:32,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 443 states have (on average 1.0045146726862302) internal successors, (445), 444 states have internal predecessors, (445), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 01:38:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 558 transitions. [2022-02-24 01:38:32,984 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 558 transitions. Word has length 546 [2022-02-24 01:38:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:38:32,985 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 558 transitions. [2022-02-24 01:38:32,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 115 states have (on average 2.4347826086956523) internal successors, (280), 114 states have internal predecessors, (280), 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 01:38:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 558 transitions. [2022-02-24 01:38:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-02-24 01:38:32,987 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:38:32,987 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:38:32,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-24 01:38:32,987 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:38:32,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:38:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -268615842, now seen corresponding path program 107 times [2022-02-24 01:38:32,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:38:32,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025960617] [2022-02-24 01:38:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:38:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:38:32,992 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:38:32,992 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:38:32,993 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:38:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:38:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-02-24 01:38:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:38:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:38:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:38:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:38:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:38:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:38:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:38:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:38:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:38:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:38:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:38:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:38:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:38:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:38:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:38:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:38:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:38:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:38:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:38:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:38:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:38:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:38:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:38:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:38:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:38:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:38:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:38:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:38:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:38:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:38:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:38:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:38:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:38:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:38:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:38:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:38:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:38:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:38:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:38:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:38:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:38:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:38:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:38:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:38:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:38:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:38:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:38:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:38:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:38:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:38:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:38:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:38:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-24 01:38:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:35,558 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 01:38:35,559 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:38:35,559 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025960617] [2022-02-24 01:38:35,559 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2025960617] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:38:35,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:38:35,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [114] imperfect sequences [] total 114 [2022-02-24 01:38:35,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115507196] [2022-02-24 01:38:35,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:38:35,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2022-02-24 01:38:35,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:38:35,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2022-02-24 01:38:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3142, Invalid=9740, Unknown=0, NotChecked=0, Total=12882 [2022-02-24 01:38:35,562 INFO L87 Difference]: Start difference. First operand 557 states and 558 transitions. Second operand has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 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 01:38:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:38:39,504 INFO L93 Difference]: Finished difference Result 788 states and 844 transitions. [2022-02-24 01:38:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-02-24 01:38:39,504 INFO L78 Accepts]: Start accepts. Automaton has has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 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 554 [2022-02-24 01:38:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:38:39,505 INFO L225 Difference]: With dead ends: 788 [2022-02-24 01:38:39,505 INFO L226 Difference]: Without dead ends: 560 [2022-02-24 01:38:39,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12203 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=9640, Invalid=40760, Unknown=0, NotChecked=0, Total=50400 [2022-02-24 01:38:39,508 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 3217 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 3447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 3217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:38:39,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 188 Invalid, 3447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 3217 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:38:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-02-24 01:38:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2022-02-24 01:38:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 445 states have (on average 1.0044943820224719) internal successors, (447), 446 states have internal predecessors, (447), 57 states have call successors, (57), 57 states have call predecessors, (57), 56 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-24 01:38:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 560 transitions. [2022-02-24 01:38:39,818 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 560 transitions. Word has length 554 [2022-02-24 01:38:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:38:39,818 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 560 transitions. [2022-02-24 01:38:39,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 2.482456140350877) internal successors, (283), 113 states have internal predecessors, (283), 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 01:38:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 560 transitions. [2022-02-24 01:38:39,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-02-24 01:38:39,821 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:38:39,821 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:38:39,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-24 01:38:39,821 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:38:39,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:38:39,821 INFO L85 PathProgramCache]: Analyzing trace with hash 208356156, now seen corresponding path program 108 times [2022-02-24 01:38:39,821 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:38:39,821 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385390811] [2022-02-24 01:38:39,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:38:39,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:38:39,829 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:38:39,830 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:38:39,830 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:38:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:38:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:38:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:38:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:38:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:38:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:38:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:38:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:38:43,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:38:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:38:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:38:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:38:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:38:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:38:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:38:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:38:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:38:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:38:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:38:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:38:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:38:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:38:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:38:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:38:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:38:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:38:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:38:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:38:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:38:43,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:38:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:38:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:38:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:38:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:38:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:38:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:38:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:38:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:38:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:38:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:38:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:38:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:38:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:38:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:38:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:38:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:38:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:38:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:38:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:38:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:38:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 01:38:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-24 01:38:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-24 01:38:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-24 01:38:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-24 01:38:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:38:43,996 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 01:38:43,996 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:38:43,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385390811] [2022-02-24 01:38:43,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1385390811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:38:43,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:38:43,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [] total 118 [2022-02-24 01:38:43,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157404608] [2022-02-24 01:38:43,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:38:43,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-02-24 01:38:43,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:38:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-02-24 01:38:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=13570, Unknown=0, NotChecked=0, Total=13806 [2022-02-24 01:38:43,999 INFO L87 Difference]: Start difference. First operand 559 states and 560 transitions. Second operand has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 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 01:39:01,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:39:01,092 INFO L93 Difference]: Finished difference Result 572 states and 573 transitions. [2022-02-24 01:39:01,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-24 01:39:01,093 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 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 556 [2022-02-24 01:39:01,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:39:01,094 INFO L225 Difference]: With dead ends: 572 [2022-02-24 01:39:01,094 INFO L226 Difference]: Without dead ends: 570 [2022-02-24 01:39:01,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6959 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=821, Invalid=53701, Unknown=0, NotChecked=0, Total=54522 [2022-02-24 01:39:01,098 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 300 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 45256 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 45596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 45256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-02-24 01:39:01,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 641 Invalid, 45596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [340 Valid, 45256 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-02-24 01:39:01,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-02-24 01:39:01,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 567. [2022-02-24 01:39:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 451 states have (on average 1.0044345898004434) internal successors, (453), 452 states have internal predecessors, (453), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 01:39:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 568 transitions. [2022-02-24 01:39:01,498 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 568 transitions. Word has length 556 [2022-02-24 01:39:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:39:01,499 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 568 transitions. [2022-02-24 01:39:01,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 117 states have (on average 2.4358974358974357) internal successors, (285), 116 states have internal predecessors, (285), 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 01:39:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 568 transitions. [2022-02-24 01:39:01,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-02-24 01:39:01,502 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:39:01,502 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:39:01,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-24 01:39:01,502 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:39:01,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:39:01,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1896960746, now seen corresponding path program 109 times [2022-02-24 01:39:01,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:39:01,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827808984] [2022-02-24 01:39:01,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:39:01,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:39:01,509 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:39:01,509 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:39:01,509 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:39:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:39:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-02-24 01:39:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:39:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:39:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:39:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:39:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:39:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:39:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:39:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:39:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:39:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:39:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:39:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:39:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:39:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:39:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:39:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:39:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:39:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:39:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:39:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:39:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:39:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:39:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:39:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:39:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:39:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:39:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:39:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:39:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:39:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:39:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:39:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:39:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:39:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:39:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:39:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:39:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:39:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:39:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:39:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:39:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:39:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:39:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:39:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:39:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:39:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:39:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:39:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:39:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 01:39:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-24 01:39:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-24 01:39:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-24 01:39:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-24 01:39:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-24 01:39:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:05,194 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 01:39:05,194 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:39:05,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827808984] [2022-02-24 01:39:05,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [827808984] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:39:05,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:39:05,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [116] imperfect sequences [] total 116 [2022-02-24 01:39:05,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91004803] [2022-02-24 01:39:05,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:39:05,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-24 01:39:05,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:39:05,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-24 01:39:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3255, Invalid=10085, Unknown=0, NotChecked=0, Total=13340 [2022-02-24 01:39:05,198 INFO L87 Difference]: Start difference. First operand 567 states and 568 transitions. Second operand has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 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 01:39:09,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:39:09,781 INFO L93 Difference]: Finished difference Result 802 states and 859 transitions. [2022-02-24 01:39:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-24 01:39:09,782 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 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 564 [2022-02-24 01:39:09,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:39:09,783 INFO L225 Difference]: With dead ends: 802 [2022-02-24 01:39:09,783 INFO L226 Difference]: Without dead ends: 570 [2022-02-24 01:39:09,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12649 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=9983, Invalid=42229, Unknown=0, NotChecked=0, Total=52212 [2022-02-24 01:39:09,786 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 142 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3207 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 3207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:39:09,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 180 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 3207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:39:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-02-24 01:39:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 569. [2022-02-24 01:39:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 453 states have (on average 1.0044150110375276) internal successors, (455), 454 states have internal predecessors, (455), 58 states have call successors, (58), 58 states have call predecessors, (58), 57 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-24 01:39:10,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 570 transitions. [2022-02-24 01:39:10,126 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 570 transitions. Word has length 564 [2022-02-24 01:39:10,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:39:10,126 INFO L470 AbstractCegarLoop]: Abstraction has 569 states and 570 transitions. [2022-02-24 01:39:10,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.4827586206896552) internal successors, (288), 115 states have internal predecessors, (288), 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 01:39:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 570 transitions. [2022-02-24 01:39:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2022-02-24 01:39:10,130 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:39:10,130 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:39:10,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-24 01:39:10,130 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:39:10,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:39:10,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1179120500, now seen corresponding path program 110 times [2022-02-24 01:39:10,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:39:10,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466482749] [2022-02-24 01:39:10,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:39:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:39:10,137 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:39:10,137 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:39:10,137 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:39:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:39:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:39:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:39:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:39:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:39:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:39:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:39:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:39:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:39:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:39:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:39:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:39:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:39:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:39:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:39:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:39:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:39:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:39:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:39:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:39:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:39:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:39:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:39:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:39:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:39:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:39:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:39:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:39:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:39:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:39:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:39:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:39:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:39:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:39:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:39:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:39:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:39:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:39:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:39:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:39:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:39:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:39:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:39:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:39:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:39:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:39:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:39:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:39:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:39:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:39:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:39:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 01:39:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-24 01:39:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-24 01:39:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-24 01:39:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-24 01:39:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:15,195 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 01:39:15,195 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:39:15,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466482749] [2022-02-24 01:39:15,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1466482749] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:39:15,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:39:15,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [] total 120 [2022-02-24 01:39:15,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869838762] [2022-02-24 01:39:15,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:39:15,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-02-24 01:39:15,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:39:15,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-02-24 01:39:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=14040, Unknown=0, NotChecked=0, Total=14280 [2022-02-24 01:39:15,197 INFO L87 Difference]: Start difference. First operand 569 states and 570 transitions. Second operand has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 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 01:39:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:39:33,255 INFO L93 Difference]: Finished difference Result 582 states and 583 transitions. [2022-02-24 01:39:33,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-02-24 01:39:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 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 566 [2022-02-24 01:39:33,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:39:33,257 INFO L225 Difference]: With dead ends: 582 [2022-02-24 01:39:33,257 INFO L226 Difference]: Without dead ends: 580 [2022-02-24 01:39:33,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7197 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=835, Invalid=55571, Unknown=0, NotChecked=0, Total=56406 [2022-02-24 01:39:33,259 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 305 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 46685 mSolverCounterSat, 346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 47031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 346 IncrementalHoareTripleChecker+Valid, 46685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-02-24 01:39:33,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 648 Invalid, 47031 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [346 Valid, 46685 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2022-02-24 01:39:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-24 01:39:33,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 577. [2022-02-24 01:39:33,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 459 states have (on average 1.0043572984749456) internal successors, (461), 460 states have internal predecessors, (461), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 01:39:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 578 transitions. [2022-02-24 01:39:33,585 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 578 transitions. Word has length 566 [2022-02-24 01:39:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:39:33,586 INFO L470 AbstractCegarLoop]: Abstraction has 577 states and 578 transitions. [2022-02-24 01:39:33,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 119 states have (on average 2.436974789915966) internal successors, (290), 118 states have internal predecessors, (290), 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 01:39:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 578 transitions. [2022-02-24 01:39:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2022-02-24 01:39:33,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:39:33,588 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:39:33,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-24 01:39:33,588 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:39:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:39:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1475107506, now seen corresponding path program 111 times [2022-02-24 01:39:33,589 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:39:33,589 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495925422] [2022-02-24 01:39:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:39:33,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:39:33,594 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:39:33,594 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:39:33,594 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:39:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:39:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-02-24 01:39:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:39:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:39:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:39:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:39:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:39:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:39:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:39:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:39:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:39:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:39:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:39:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:39:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:39:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:39:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:39:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:39:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:39:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:39:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:39:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:39:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:39:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:39:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:39:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:39:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:39:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:39:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:39:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:39:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:39:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:39:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:39:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:39:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:39:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:39:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:39:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:39:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:39:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:39:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:39:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:39:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:39:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:39:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:39:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:39:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:39:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:39:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:39:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:39:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:39:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 01:39:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-24 01:39:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-24 01:39:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-24 01:39:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-24 01:39:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-24 01:39:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:36,491 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 01:39:36,491 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:39:36,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [495925422] [2022-02-24 01:39:36,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [495925422] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:39:36,491 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:39:36,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [118] imperfect sequences [] total 118 [2022-02-24 01:39:36,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432924799] [2022-02-24 01:39:36,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:39:36,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-02-24 01:39:36,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:39:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-02-24 01:39:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3370, Invalid=10436, Unknown=0, NotChecked=0, Total=13806 [2022-02-24 01:39:36,493 INFO L87 Difference]: Start difference. First operand 577 states and 578 transitions. Second operand has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 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 01:39:41,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:39:41,271 INFO L93 Difference]: Finished difference Result 816 states and 874 transitions. [2022-02-24 01:39:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-24 01:39:41,271 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 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 574 [2022-02-24 01:39:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:39:41,273 INFO L225 Difference]: With dead ends: 816 [2022-02-24 01:39:41,273 INFO L226 Difference]: Without dead ends: 580 [2022-02-24 01:39:41,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13103 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=10332, Invalid=43724, Unknown=0, NotChecked=0, Total=54056 [2022-02-24 01:39:41,275 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 3550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:39:41,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 197 Invalid, 3550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:39:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-02-24 01:39:41,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 579. [2022-02-24 01:39:41,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 461 states have (on average 1.0043383947939262) internal successors, (463), 462 states have internal predecessors, (463), 59 states have call successors, (59), 59 states have call predecessors, (59), 58 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-24 01:39:41,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 580 transitions. [2022-02-24 01:39:41,544 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 580 transitions. Word has length 574 [2022-02-24 01:39:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:39:41,545 INFO L470 AbstractCegarLoop]: Abstraction has 579 states and 580 transitions. [2022-02-24 01:39:41,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 2.483050847457627) internal successors, (293), 117 states have internal predecessors, (293), 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 01:39:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 580 transitions. [2022-02-24 01:39:41,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-02-24 01:39:41,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:39:41,547 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:39:41,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-24 01:39:41,547 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:39:41,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:39:41,547 INFO L85 PathProgramCache]: Analyzing trace with hash -116978132, now seen corresponding path program 112 times [2022-02-24 01:39:41,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:39:41,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1790953891] [2022-02-24 01:39:41,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:39:41,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:39:41,553 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:39:41,553 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:39:41,553 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:39:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:39:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:39:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:39:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:39:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:39:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:39:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:39:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:39:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:39:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:39:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:39:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:39:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:39:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:39:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:39:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:39:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:39:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:39:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:39:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:39:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:39:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:39:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:39:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:39:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:39:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:39:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:39:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:39:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:39:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:39:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:39:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:39:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:39:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:39:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:39:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:39:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:39:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:39:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:39:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:39:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:39:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:39:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:39:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:39:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:39:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:39:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:39:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:39:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:39:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:39:47,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:39:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:39:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 01:39:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-24 01:39:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-24 01:39:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-24 01:39:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-24 01:39:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:39:47,476 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 01:39:47,476 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:39:47,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1790953891] [2022-02-24 01:39:47,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1790953891] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:39:47,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:39:47,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [122] imperfect sequences [] total 122 [2022-02-24 01:39:47,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865136766] [2022-02-24 01:39:47,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:39:47,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-02-24 01:39:47,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:39:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-02-24 01:39:47,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=14518, Unknown=0, NotChecked=0, Total=14762 [2022-02-24 01:39:47,478 INFO L87 Difference]: Start difference. First operand 579 states and 580 transitions. Second operand has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 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 01:40:05,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:40:05,390 INFO L93 Difference]: Finished difference Result 592 states and 593 transitions. [2022-02-24 01:40:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-24 01:40:05,390 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 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 576 [2022-02-24 01:40:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:40:05,391 INFO L225 Difference]: With dead ends: 592 [2022-02-24 01:40:05,392 INFO L226 Difference]: Without dead ends: 590 [2022-02-24 01:40:05,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7439 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=849, Invalid=57473, Unknown=0, NotChecked=0, Total=58322 [2022-02-24 01:40:05,394 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 310 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 48496 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 48848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 48496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:40:05,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 663 Invalid, 48848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [352 Valid, 48496 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-02-24 01:40:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-02-24 01:40:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2022-02-24 01:40:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 467 states have (on average 1.0042826552462527) internal successors, (469), 468 states have internal predecessors, (469), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 01:40:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 588 transitions. [2022-02-24 01:40:05,695 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 588 transitions. Word has length 576 [2022-02-24 01:40:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:40:05,696 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 588 transitions. [2022-02-24 01:40:05,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 121 states have (on average 2.43801652892562) internal successors, (295), 120 states have internal predecessors, (295), 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 01:40:05,697 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 588 transitions. [2022-02-24 01:40:05,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-02-24 01:40:05,699 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:40:05,699 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:40:05,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-24 01:40:05,699 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:40:05,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:40:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1337423866, now seen corresponding path program 113 times [2022-02-24 01:40:05,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:40:05,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988898907] [2022-02-24 01:40:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:40:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:40:05,709 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:40:05,709 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:40:05,709 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:40:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:40:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-02-24 01:40:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:40:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:40:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:40:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:40:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:40:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:40:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:40:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:40:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:40:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:40:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:40:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:40:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:40:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:40:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:40:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:40:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:40:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:40:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:40:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:40:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:40:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:40:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:40:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:40:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:40:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:40:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:40:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:40:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:40:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:40:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:40:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:40:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:40:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:40:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:40:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:40:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:40:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:40:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:40:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:40:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:40:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:40:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:40:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:40:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:40:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:40:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:40:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:40:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:40:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:40:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 01:40:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-24 01:40:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-24 01:40:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-24 01:40:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-24 01:40:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-24 01:40:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:08,676 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 01:40:08,677 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:40:08,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988898907] [2022-02-24 01:40:08,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [988898907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:40:08,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:40:08,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [120] imperfect sequences [] total 120 [2022-02-24 01:40:08,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940002877] [2022-02-24 01:40:08,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:40:08,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 120 states [2022-02-24 01:40:08,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:40:08,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2022-02-24 01:40:08,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3487, Invalid=10793, Unknown=0, NotChecked=0, Total=14280 [2022-02-24 01:40:08,679 INFO L87 Difference]: Start difference. First operand 587 states and 588 transitions. Second operand has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 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 01:40:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:40:14,369 INFO L93 Difference]: Finished difference Result 830 states and 889 transitions. [2022-02-24 01:40:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-02-24 01:40:14,370 INFO L78 Accepts]: Start accepts. Automaton has has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 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 584 [2022-02-24 01:40:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:40:14,371 INFO L225 Difference]: With dead ends: 830 [2022-02-24 01:40:14,372 INFO L226 Difference]: Without dead ends: 590 [2022-02-24 01:40:14,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13565 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=10687, Invalid=45245, Unknown=0, NotChecked=0, Total=55932 [2022-02-24 01:40:14,375 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 146 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3695 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:40:14,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 189 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 3695 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-24 01:40:14,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-02-24 01:40:14,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 589. [2022-02-24 01:40:14,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 469 states have (on average 1.004264392324094) internal successors, (471), 470 states have internal predecessors, (471), 60 states have call successors, (60), 60 states have call predecessors, (60), 59 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-24 01:40:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 590 transitions. [2022-02-24 01:40:14,678 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 590 transitions. Word has length 584 [2022-02-24 01:40:14,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:40:14,678 INFO L470 AbstractCegarLoop]: Abstraction has 589 states and 590 transitions. [2022-02-24 01:40:14,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 120 states, 120 states have (on average 2.4833333333333334) internal successors, (298), 119 states have internal predecessors, (298), 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 01:40:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 590 transitions. [2022-02-24 01:40:14,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-02-24 01:40:14,681 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:40:14,681 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:40:14,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-24 01:40:14,681 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:40:14,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:40:14,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1267928220, now seen corresponding path program 114 times [2022-02-24 01:40:14,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:40:14,681 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781114538] [2022-02-24 01:40:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:40:14,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:40:14,686 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:40:14,686 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:40:14,686 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:40:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:40:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:40:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:40:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:40:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:40:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:40:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:40:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:40:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:40:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:40:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:40:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:40:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:40:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:40:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:40:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:40:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:40:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:40:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:40:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:40:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:40:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:40:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:40:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:40:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:40:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:40:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:40:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:40:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:40:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:40:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:40:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:40:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:40:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:40:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:40:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:40:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:40:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:40:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:40:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:40:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:40:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:40:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:40:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:40:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:40:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:40:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:40:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:40:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:40:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:40:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:40:19,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:40:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:40:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-24 01:40:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-24 01:40:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-24 01:40:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-24 01:40:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-24 01:40:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:19,930 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 01:40:19,930 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:40:19,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781114538] [2022-02-24 01:40:19,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1781114538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:40:19,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:40:19,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [] total 124 [2022-02-24 01:40:19,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447130411] [2022-02-24 01:40:19,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:40:19,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-24 01:40:19,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:40:19,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-24 01:40:19,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=15004, Unknown=0, NotChecked=0, Total=15252 [2022-02-24 01:40:19,933 INFO L87 Difference]: Start difference. First operand 589 states and 590 transitions. Second operand has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 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 01:40:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:40:38,793 INFO L93 Difference]: Finished difference Result 602 states and 603 transitions. [2022-02-24 01:40:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-24 01:40:38,793 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 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 586 [2022-02-24 01:40:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:40:38,795 INFO L225 Difference]: With dead ends: 602 [2022-02-24 01:40:38,795 INFO L226 Difference]: Without dead ends: 600 [2022-02-24 01:40:38,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7685 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=863, Invalid=59407, Unknown=0, NotChecked=0, Total=60270 [2022-02-24 01:40:38,799 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 315 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 50577 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 50935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 50577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:40:38,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 678 Invalid, 50935 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [358 Valid, 50577 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-02-24 01:40:38,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-24 01:40:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 597. [2022-02-24 01:40:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 475 states have (on average 1.0042105263157894) internal successors, (477), 476 states have internal predecessors, (477), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 01:40:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 598 transitions. [2022-02-24 01:40:39,142 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 598 transitions. Word has length 586 [2022-02-24 01:40:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:40:39,142 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 598 transitions. [2022-02-24 01:40:39,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 123 states have (on average 2.4390243902439024) internal successors, (300), 122 states have internal predecessors, (300), 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 01:40:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 598 transitions. [2022-02-24 01:40:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2022-02-24 01:40:39,144 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:40:39,144 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:40:39,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-24 01:40:39,144 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:40:39,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:40:39,145 INFO L85 PathProgramCache]: Analyzing trace with hash -588139202, now seen corresponding path program 115 times [2022-02-24 01:40:39,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:40:39,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178455927] [2022-02-24 01:40:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:40:39,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:40:39,150 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:40:39,150 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:40:39,150 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:40:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:40:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-02-24 01:40:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:40:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:40:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:40:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:40:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:40:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:40:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:40:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:40:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:40:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:40:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:40:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:40:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:40:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:40:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:40:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:40:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:40:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:40:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:40:42,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:40:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:40:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:40:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:40:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:40:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:40:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:40:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:40:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:40:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:40:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:40:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:40:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:40:42,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:40:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:40:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:40:42,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:40:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:40:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:40:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:40:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:40:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:40:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:40:42,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:40:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:40:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:40:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:40:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:40:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:40:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:40:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:40:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:40:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-24 01:40:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-24 01:40:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-24 01:40:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-24 01:40:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-24 01:40:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-02-24 01:40:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:42,722 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 01:40:42,722 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:40:42,722 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178455927] [2022-02-24 01:40:42,722 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [178455927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:40:42,722 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:40:42,722 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [122] imperfect sequences [] total 122 [2022-02-24 01:40:42,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254557512] [2022-02-24 01:40:42,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:40:42,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 122 states [2022-02-24 01:40:42,723 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:40:42,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2022-02-24 01:40:42,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3606, Invalid=11156, Unknown=0, NotChecked=0, Total=14762 [2022-02-24 01:40:42,725 INFO L87 Difference]: Start difference. First operand 597 states and 598 transitions. Second operand has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 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 01:40:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:40:47,864 INFO L93 Difference]: Finished difference Result 844 states and 904 transitions. [2022-02-24 01:40:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-02-24 01:40:47,864 INFO L78 Accepts]: Start accepts. Automaton has has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 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 594 [2022-02-24 01:40:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:40:47,866 INFO L225 Difference]: With dead ends: 844 [2022-02-24 01:40:47,866 INFO L226 Difference]: Without dead ends: 600 [2022-02-24 01:40:47,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14035 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=11048, Invalid=46792, Unknown=0, NotChecked=0, Total=57840 [2022-02-24 01:40:47,869 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 148 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3555 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:40:47,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 171 Invalid, 3805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3555 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:40:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-24 01:40:48,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 599. [2022-02-24 01:40:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 477 states have (on average 1.0041928721174005) internal successors, (479), 478 states have internal predecessors, (479), 61 states have call successors, (61), 61 states have call predecessors, (61), 60 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-24 01:40:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 600 transitions. [2022-02-24 01:40:48,199 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 600 transitions. Word has length 594 [2022-02-24 01:40:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:40:48,200 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 600 transitions. [2022-02-24 01:40:48,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 122 states, 122 states have (on average 2.4836065573770494) internal successors, (303), 121 states have internal predecessors, (303), 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 01:40:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 600 transitions. [2022-02-24 01:40:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2022-02-24 01:40:48,203 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:40:48,203 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:40:48,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-24 01:40:48,203 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:40:48,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:40:48,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1187382044, now seen corresponding path program 116 times [2022-02-24 01:40:48,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:40:48,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964212280] [2022-02-24 01:40:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:40:48,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:40:48,209 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:40:48,210 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:40:48,210 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:40:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:40:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:40:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:40:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:40:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:40:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:40:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:40:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:40:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:40:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:40:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:40:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:40:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:40:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:40:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:40:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:40:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:40:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:40:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:40:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:40:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:40:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:40:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:40:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:40:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:40:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:40:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:40:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:40:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:40:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:40:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:40:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:40:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:40:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:40:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:40:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:40:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:40:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:40:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:40:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:40:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:40:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:40:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:40:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:40:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:40:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:40:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:40:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:40:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:40:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 01:40:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-24 01:40:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-24 01:40:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-24 01:40:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-24 01:40:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-24 01:40:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-02-24 01:40:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-02-24 01:40:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-02-24 01:40:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2022-02-24 01:40:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:40:52,974 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 01:40:52,974 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:40:52,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964212280] [2022-02-24 01:40:52,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [964212280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:40:52,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:40:52,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [126] imperfect sequences [] total 126 [2022-02-24 01:40:52,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311287658] [2022-02-24 01:40:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:40:52,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-02-24 01:40:52,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:40:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-02-24 01:40:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=15498, Unknown=0, NotChecked=0, Total=15750 [2022-02-24 01:40:52,976 INFO L87 Difference]: Start difference. First operand 599 states and 600 transitions. Second operand has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 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 01:41:12,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:41:12,705 INFO L93 Difference]: Finished difference Result 612 states and 613 transitions. [2022-02-24 01:41:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-24 01:41:12,705 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 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 596 [2022-02-24 01:41:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:41:12,706 INFO L225 Difference]: With dead ends: 612 [2022-02-24 01:41:12,706 INFO L226 Difference]: Without dead ends: 610 [2022-02-24 01:41:12,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7935 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=877, Invalid=61373, Unknown=0, NotChecked=0, Total=62250 [2022-02-24 01:41:12,709 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 320 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 52274 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 52638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 52274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:41:12,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 689 Invalid, 52638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [364 Valid, 52274 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-02-24 01:41:12,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-24 01:41:13,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 607. [2022-02-24 01:41:13,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 483 states have (on average 1.0041407867494825) internal successors, (485), 484 states have internal predecessors, (485), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 01:41:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 608 transitions. [2022-02-24 01:41:13,059 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 608 transitions. Word has length 596 [2022-02-24 01:41:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:41:13,059 INFO L470 AbstractCegarLoop]: Abstraction has 607 states and 608 transitions. [2022-02-24 01:41:13,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 125 states have (on average 2.44) internal successors, (305), 124 states have internal predecessors, (305), 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 01:41:13,059 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 608 transitions. [2022-02-24 01:41:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-02-24 01:41:13,062 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:41:13,062 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:41:13,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-24 01:41:13,062 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:41:13,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:41:13,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1711567626, now seen corresponding path program 117 times [2022-02-24 01:41:13,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:41:13,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026924761] [2022-02-24 01:41:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:41:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:41:13,069 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:41:13,070 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:41:13,070 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:41:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:41:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-02-24 01:41:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-02-24 01:41:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-02-24 01:41:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-02-24 01:41:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-02-24 01:41:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-02-24 01:41:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-02-24 01:41:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-02-24 01:41:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-02-24 01:41:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-02-24 01:41:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-02-24 01:41:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-02-24 01:41:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-02-24 01:41:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-02-24 01:41:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-02-24 01:41:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-02-24 01:41:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-02-24 01:41:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-02-24 01:41:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-02-24 01:41:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-02-24 01:41:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-02-24 01:41:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-02-24 01:41:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-02-24 01:41:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-02-24 01:41:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-02-24 01:41:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-02-24 01:41:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-02-24 01:41:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-02-24 01:41:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-02-24 01:41:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-02-24 01:41:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-02-24 01:41:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-02-24 01:41:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-02-24 01:41:17,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-02-24 01:41:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-02-24 01:41:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2022-02-24 01:41:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-02-24 01:41:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2022-02-24 01:41:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2022-02-24 01:41:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2022-02-24 01:41:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2022-02-24 01:41:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2022-02-24 01:41:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2022-02-24 01:41:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-02-24 01:41:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2022-02-24 01:41:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2022-02-24 01:41:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2022-02-24 01:41:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2022-02-24 01:41:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2022-02-24 01:41:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2022-02-24 01:41:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-02-24 01:41:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2022-02-24 01:41:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 544 [2022-02-24 01:41:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2022-02-24 01:41:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2022-02-24 01:41:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2022-02-24 01:41:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 576 [2022-02-24 01:41:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2022-02-24 01:41:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2022-02-24 01:41:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:17,305 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 01:41:17,305 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:41:17,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026924761] [2022-02-24 01:41:17,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1026924761] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:41:17,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:41:17,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [124] imperfect sequences [] total 124 [2022-02-24 01:41:17,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005871982] [2022-02-24 01:41:17,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:41:17,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-02-24 01:41:17,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:41:17,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-02-24 01:41:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3727, Invalid=11525, Unknown=0, NotChecked=0, Total=15252 [2022-02-24 01:41:17,309 INFO L87 Difference]: Start difference. First operand 607 states and 608 transitions. Second operand has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 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 01:41:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:41:22,345 INFO L93 Difference]: Finished difference Result 858 states and 919 transitions. [2022-02-24 01:41:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-02-24 01:41:22,345 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 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 604 [2022-02-24 01:41:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:41:22,347 INFO L225 Difference]: With dead ends: 858 [2022-02-24 01:41:22,347 INFO L226 Difference]: Without dead ends: 610 [2022-02-24 01:41:22,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 243 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14513 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=11415, Invalid=48365, Unknown=0, NotChecked=0, Total=59780 [2022-02-24 01:41:22,350 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 150 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 3529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:41:22,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 173 Invalid, 3529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:41:22,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-02-24 01:41:22,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 609. [2022-02-24 01:41:22,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 485 states have (on average 1.0041237113402062) internal successors, (487), 486 states have internal predecessors, (487), 62 states have call successors, (62), 62 states have call predecessors, (62), 61 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-24 01:41:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 610 transitions. [2022-02-24 01:41:22,725 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 610 transitions. Word has length 604 [2022-02-24 01:41:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:41:22,725 INFO L470 AbstractCegarLoop]: Abstraction has 609 states and 610 transitions. [2022-02-24 01:41:22,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.4838709677419355) internal successors, (308), 123 states have internal predecessors, (308), 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 01:41:22,726 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 610 transitions. [2022-02-24 01:41:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2022-02-24 01:41:22,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:41:22,729 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:41:22,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-24 01:41:22,729 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:41:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:41:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1293509292, now seen corresponding path program 118 times [2022-02-24 01:41:22,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:41:22,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920136141] [2022-02-24 01:41:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:41:22,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:41:22,735 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:41:22,735 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:41:22,736 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:41:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:41:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:41:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:41:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:41:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:41:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:41:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:41:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:41:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:41:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:41:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:41:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:41:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:41:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:41:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:41:28,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:41:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:41:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:41:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:41:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:41:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:41:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:41:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:41:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:41:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:41:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:41:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:41:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:41:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:41:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:41:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:41:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:41:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:41:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:41:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:41:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:41:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:41:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:41:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:41:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:41:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:41:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:41:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:41:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:41:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:41:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:41:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:41:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:41:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:41:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:41:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 01:41:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-24 01:41:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-24 01:41:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-24 01:41:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-24 01:41:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-24 01:41:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2022-02-24 01:41:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2022-02-24 01:41:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-02-24 01:41:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2022-02-24 01:41:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:28,461 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 01:41:28,461 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:41:28,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920136141] [2022-02-24 01:41:28,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [920136141] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:41:28,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:41:28,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [128] imperfect sequences [] total 128 [2022-02-24 01:41:28,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201476376] [2022-02-24 01:41:28,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:41:28,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-02-24 01:41:28,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:41:28,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-02-24 01:41:28,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=16000, Unknown=0, NotChecked=0, Total=16256 [2022-02-24 01:41:28,465 INFO L87 Difference]: Start difference. First operand 609 states and 610 transitions. Second operand has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 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 01:41:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:41:48,653 INFO L93 Difference]: Finished difference Result 622 states and 623 transitions. [2022-02-24 01:41:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-02-24 01:41:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 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 606 [2022-02-24 01:41:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:41:48,655 INFO L225 Difference]: With dead ends: 622 [2022-02-24 01:41:48,655 INFO L226 Difference]: Without dead ends: 620 [2022-02-24 01:41:48,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8189 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=891, Invalid=63371, Unknown=0, NotChecked=0, Total=64262 [2022-02-24 01:41:48,658 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 325 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 53621 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 53991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 53621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-02-24 01:41:48,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 692 Invalid, 53991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [370 Valid, 53621 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2022-02-24 01:41:48,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-24 01:41:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 617. [2022-02-24 01:41:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 491 states have (on average 1.0040733197556009) internal successors, (493), 492 states have internal predecessors, (493), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 01:41:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 618 transitions. [2022-02-24 01:41:49,004 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 618 transitions. Word has length 606 [2022-02-24 01:41:49,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:41:49,004 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 618 transitions. [2022-02-24 01:41:49,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.440944881889764) internal successors, (310), 126 states have internal predecessors, (310), 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 01:41:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 618 transitions. [2022-02-24 01:41:49,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-02-24 01:41:49,007 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:41:49,007 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:41:49,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-24 01:41:49,007 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:41:49,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:41:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2145021742, now seen corresponding path program 119 times [2022-02-24 01:41:49,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:41:49,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298268547] [2022-02-24 01:41:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:41:49,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:41:49,024 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:41:49,024 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:41:49,025 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:41:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:41:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-02-24 01:41:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-02-24 01:41:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-02-24 01:41:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-02-24 01:41:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-02-24 01:41:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-02-24 01:41:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-02-24 01:41:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-02-24 01:41:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-02-24 01:41:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-02-24 01:41:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-02-24 01:41:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-02-24 01:41:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-02-24 01:41:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-02-24 01:41:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-02-24 01:41:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-02-24 01:41:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-02-24 01:41:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-02-24 01:41:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-02-24 01:41:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-02-24 01:41:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-02-24 01:41:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-02-24 01:41:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-02-24 01:41:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-02-24 01:41:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-02-24 01:41:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2022-02-24 01:41:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-02-24 01:41:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-02-24 01:41:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-02-24 01:41:52,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-02-24 01:41:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-02-24 01:41:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-02-24 01:41:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2022-02-24 01:41:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-02-24 01:41:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2022-02-24 01:41:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2022-02-24 01:41:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2022-02-24 01:41:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2022-02-24 01:41:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2022-02-24 01:41:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2022-02-24 01:41:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2022-02-24 01:41:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2022-02-24 01:41:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-02-24 01:41:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2022-02-24 01:41:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2022-02-24 01:41:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2022-02-24 01:41:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2022-02-24 01:41:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2022-02-24 01:41:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2022-02-24 01:41:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2022-02-24 01:41:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2022-02-24 01:41:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2022-02-24 01:41:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2022-02-24 01:41:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2022-02-24 01:41:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2022-02-24 01:41:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 570 [2022-02-24 01:41:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 578 [2022-02-24 01:41:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 586 [2022-02-24 01:41:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2022-02-24 01:41:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2022-02-24 01:41:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:41:52,162 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 01:41:52,162 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:41:52,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298268547] [2022-02-24 01:41:52,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1298268547] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:41:52,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:41:52,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [126] imperfect sequences [] total 126 [2022-02-24 01:41:52,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358226434] [2022-02-24 01:41:52,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:41:52,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-02-24 01:41:52,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:41:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-02-24 01:41:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3850, Invalid=11900, Unknown=0, NotChecked=0, Total=15750 [2022-02-24 01:41:52,166 INFO L87 Difference]: Start difference. First operand 617 states and 618 transitions. Second operand has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 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 01:41:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:41:56,840 INFO L93 Difference]: Finished difference Result 872 states and 934 transitions. [2022-02-24 01:41:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-24 01:41:56,841 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 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 614 [2022-02-24 01:41:56,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:41:56,843 INFO L225 Difference]: With dead ends: 872 [2022-02-24 01:41:56,843 INFO L226 Difference]: Without dead ends: 620 [2022-02-24 01:41:56,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14999 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=11788, Invalid=49964, Unknown=0, NotChecked=0, Total=61752 [2022-02-24 01:41:56,846 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 152 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 3247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:41:56,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 180 Invalid, 3247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-24 01:41:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-02-24 01:41:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2022-02-24 01:41:57,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 493 states have (on average 1.0040567951318458) internal successors, (495), 494 states have internal predecessors, (495), 63 states have call successors, (63), 63 states have call predecessors, (63), 62 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-24 01:41:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 620 transitions. [2022-02-24 01:41:57,191 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 620 transitions. Word has length 614 [2022-02-24 01:41:57,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:41:57,191 INFO L470 AbstractCegarLoop]: Abstraction has 619 states and 620 transitions. [2022-02-24 01:41:57,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 2.484126984126984) internal successors, (313), 125 states have internal predecessors, (313), 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 01:41:57,191 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 620 transitions. [2022-02-24 01:41:57,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2022-02-24 01:41:57,194 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:41:57,194 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:41:57,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-24 01:41:57,195 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:41:57,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:41:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1507122676, now seen corresponding path program 120 times [2022-02-24 01:41:57,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:41:57,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164746289] [2022-02-24 01:41:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:41:57,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:41:57,201 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:41:57,202 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:41:57,202 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:41:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:42:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:42:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:42:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:42:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:42:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:42:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:42:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:42:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:42:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:42:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:42:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:42:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:42:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:42:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:42:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:42:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:42:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:42:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:42:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:42:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:42:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:42:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:42:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:42:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:42:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:42:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:42:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:42:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:42:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:42:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:42:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:42:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:42:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:42:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:42:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:42:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:42:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:42:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:42:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:42:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:42:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:42:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:42:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:42:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:42:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:42:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:42:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:42:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:42:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:42:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:42:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 01:42:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-24 01:42:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-24 01:42:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-24 01:42:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-24 01:42:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-24 01:42:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2022-02-24 01:42:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-02-24 01:42:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2022-02-24 01:42:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2022-02-24 01:42:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:02,846 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 01:42:02,846 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:42:02,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164746289] [2022-02-24 01:42:02,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [164746289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:42:02,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:42:02,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [130] imperfect sequences [] total 130 [2022-02-24 01:42:02,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975422269] [2022-02-24 01:42:02,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:42:02,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-02-24 01:42:02,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:42:02,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-02-24 01:42:02,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=16510, Unknown=0, NotChecked=0, Total=16770 [2022-02-24 01:42:02,849 INFO L87 Difference]: Start difference. First operand 619 states and 620 transitions. Second operand has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 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 01:42:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:42:22,651 INFO L93 Difference]: Finished difference Result 632 states and 633 transitions. [2022-02-24 01:42:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-24 01:42:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 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 616 [2022-02-24 01:42:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:42:22,652 INFO L225 Difference]: With dead ends: 632 [2022-02-24 01:42:22,652 INFO L226 Difference]: Without dead ends: 630 [2022-02-24 01:42:22,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8447 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=905, Invalid=65401, Unknown=0, NotChecked=0, Total=66306 [2022-02-24 01:42:22,655 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 330 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 55119 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 55495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 55119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-02-24 01:42:22,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 703 Invalid, 55495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [376 Valid, 55119 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-02-24 01:42:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-02-24 01:42:22,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 627. [2022-02-24 01:42:22,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 499 states have (on average 1.0040080160320641) internal successors, (501), 500 states have internal predecessors, (501), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 01:42:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 628 transitions. [2022-02-24 01:42:22,980 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 628 transitions. Word has length 616 [2022-02-24 01:42:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:42:22,980 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 628 transitions. [2022-02-24 01:42:22,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 129 states have (on average 2.441860465116279) internal successors, (315), 128 states have internal predecessors, (315), 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 01:42:22,980 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 628 transitions. [2022-02-24 01:42:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-02-24 01:42:22,983 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:42:22,983 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:42:22,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-24 01:42:22,983 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:42:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:42:22,983 INFO L85 PathProgramCache]: Analyzing trace with hash -913654810, now seen corresponding path program 121 times [2022-02-24 01:42:22,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:42:22,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936032928] [2022-02-24 01:42:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:42:22,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:42:22,989 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:42:22,989 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:42:22,989 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:42:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:42:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-02-24 01:42:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-02-24 01:42:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-02-24 01:42:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-02-24 01:42:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-02-24 01:42:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-02-24 01:42:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-02-24 01:42:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-02-24 01:42:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-02-24 01:42:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-02-24 01:42:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-02-24 01:42:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-02-24 01:42:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-02-24 01:42:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-02-24 01:42:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-02-24 01:42:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-02-24 01:42:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-02-24 01:42:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-02-24 01:42:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-02-24 01:42:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-02-24 01:42:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-02-24 01:42:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-02-24 01:42:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-02-24 01:42:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-02-24 01:42:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-02-24 01:42:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-02-24 01:42:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-02-24 01:42:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-02-24 01:42:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-02-24 01:42:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-02-24 01:42:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-02-24 01:42:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-02-24 01:42:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-02-24 01:42:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-02-24 01:42:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-02-24 01:42:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2022-02-24 01:42:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2022-02-24 01:42:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2022-02-24 01:42:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-02-24 01:42:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2022-02-24 01:42:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2022-02-24 01:42:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-02-24 01:42:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2022-02-24 01:42:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2022-02-24 01:42:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 484 [2022-02-24 01:42:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-02-24 01:42:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2022-02-24 01:42:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2022-02-24 01:42:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-02-24 01:42:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2022-02-24 01:42:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2022-02-24 01:42:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2022-02-24 01:42:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2022-02-24 01:42:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 556 [2022-02-24 01:42:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 564 [2022-02-24 01:42:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2022-02-24 01:42:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2022-02-24 01:42:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2022-02-24 01:42:26,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 596 [2022-02-24 01:42:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 604 [2022-02-24 01:42:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2022-02-24 01:42:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:26,590 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 01:42:26,590 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:42:26,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936032928] [2022-02-24 01:42:26,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [936032928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:42:26,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:42:26,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [128] imperfect sequences [] total 128 [2022-02-24 01:42:26,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115387854] [2022-02-24 01:42:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:42:26,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-02-24 01:42:26,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:42:26,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-02-24 01:42:26,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3975, Invalid=12281, Unknown=0, NotChecked=0, Total=16256 [2022-02-24 01:42:26,614 INFO L87 Difference]: Start difference. First operand 627 states and 628 transitions. Second operand has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 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 01:42:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:42:31,763 INFO L93 Difference]: Finished difference Result 886 states and 949 transitions. [2022-02-24 01:42:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-24 01:42:31,763 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 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 624 [2022-02-24 01:42:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:42:31,765 INFO L225 Difference]: With dead ends: 886 [2022-02-24 01:42:31,765 INFO L226 Difference]: Without dead ends: 630 [2022-02-24 01:42:31,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15493 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=12167, Invalid=51589, Unknown=0, NotChecked=0, Total=63756 [2022-02-24 01:42:31,769 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 154 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 3362 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 3362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-24 01:42:31,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 192 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 3362 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-24 01:42:31,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-02-24 01:42:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2022-02-24 01:42:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 501 states have (on average 1.003992015968064) internal successors, (503), 502 states have internal predecessors, (503), 64 states have call successors, (64), 64 states have call predecessors, (64), 63 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-24 01:42:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 630 transitions. [2022-02-24 01:42:32,172 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 630 transitions. Word has length 624 [2022-02-24 01:42:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:42:32,172 INFO L470 AbstractCegarLoop]: Abstraction has 629 states and 630 transitions. [2022-02-24 01:42:32,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 2.484375) internal successors, (318), 127 states have internal predecessors, (318), 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 01:42:32,172 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 630 transitions. [2022-02-24 01:42:32,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-02-24 01:42:32,175 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:42:32,175 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:42:32,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-24 01:42:32,175 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:42:32,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:42:32,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1853354308, now seen corresponding path program 122 times [2022-02-24 01:42:32,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:42:32,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303762858] [2022-02-24 01:42:32,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:42:32,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:42:32,180 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:42:32,181 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:42:32,181 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:42:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:42:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:42:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:42:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:42:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:42:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:42:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:42:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:42:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:42:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:42:37,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:42:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:42:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:42:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:42:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:42:37,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:42:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:42:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:42:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:42:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:42:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:42:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:42:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:42:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:42:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:42:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:42:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:42:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:42:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:42:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:42:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:42:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:42:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:42:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:42:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:42:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:42:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:42:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:42:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:42:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:42:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:42:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:42:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:42:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:42:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:42:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:42:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:42:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:42:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:42:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:42:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:42:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:42:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-24 01:42:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-24 01:42:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-24 01:42:37,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-24 01:42:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-24 01:42:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-02-24 01:42:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2022-02-24 01:42:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-02-24 01:42:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2022-02-24 01:42:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2022-02-24 01:42:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:42:37,246 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 01:42:37,246 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:42:37,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303762858] [2022-02-24 01:42:37,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [303762858] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:42:37,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:42:37,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [132] imperfect sequences [] total 132 [2022-02-24 01:42:37,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593337192] [2022-02-24 01:42:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:42:37,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 132 states [2022-02-24 01:42:37,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:42:37,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2022-02-24 01:42:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=17028, Unknown=0, NotChecked=0, Total=17292 [2022-02-24 01:42:37,248 INFO L87 Difference]: Start difference. First operand 629 states and 630 transitions. Second operand has 132 states, 131 states have (on average 2.4427480916030535) internal successors, (320), 130 states have internal predecessors, (320), 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 01:42:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:42:58,454 INFO L93 Difference]: Finished difference Result 642 states and 643 transitions. [2022-02-24 01:42:58,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-24 01:42:58,454 INFO L78 Accepts]: Start accepts. Automaton has has 132 states, 131 states have (on average 2.4427480916030535) internal successors, (320), 130 states have internal predecessors, (320), 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 626 [2022-02-24 01:42:58,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:42:58,456 INFO L225 Difference]: With dead ends: 642 [2022-02-24 01:42:58,456 INFO L226 Difference]: Without dead ends: 640 [2022-02-24 01:42:58,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8709 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=919, Invalid=67463, Unknown=0, NotChecked=0, Total=68382 [2022-02-24 01:42:58,460 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 335 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 57533 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 57915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 57533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-02-24 01:42:58,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 722 Invalid, 57915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 57533 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-02-24 01:42:58,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-02-24 01:42:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 637. [2022-02-24 01:42:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 507 states have (on average 1.0039447731755424) internal successors, (509), 508 states have internal predecessors, (509), 65 states have call successors, (65), 65 states have call predecessors, (65), 64 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 01:42:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 638 transitions. [2022-02-24 01:42:58,814 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 638 transitions. Word has length 626 [2022-02-24 01:42:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:42:58,814 INFO L470 AbstractCegarLoop]: Abstraction has 637 states and 638 transitions. [2022-02-24 01:42:58,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 132 states, 131 states have (on average 2.4427480916030535) internal successors, (320), 130 states have internal predecessors, (320), 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 01:42:58,815 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 638 transitions. [2022-02-24 01:42:58,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-02-24 01:42:58,817 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:42:58,817 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:42:58,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-24 01:42:58,817 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:42:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:42:58,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1251005214, now seen corresponding path program 123 times [2022-02-24 01:42:58,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:42:58,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377830581] [2022-02-24 01:42:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:42:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:42:58,823 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:42:58,823 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:42:58,823 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:42:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-24 01:43:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-02-24 01:43:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-02-24 01:43:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-02-24 01:43:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-02-24 01:43:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-02-24 01:43:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-02-24 01:43:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-02-24 01:43:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-02-24 01:43:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-02-24 01:43:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-02-24 01:43:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-02-24 01:43:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-02-24 01:43:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-02-24 01:43:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-02-24 01:43:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-02-24 01:43:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-02-24 01:43:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-02-24 01:43:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-02-24 01:43:02,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-02-24 01:43:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-02-24 01:43:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-02-24 01:43:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-02-24 01:43:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2022-02-24 01:43:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-02-24 01:43:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-02-24 01:43:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-02-24 01:43:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-02-24 01:43:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-02-24 01:43:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-02-24 01:43:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-02-24 01:43:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-02-24 01:43:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-02-24 01:43:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-02-24 01:43:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2022-02-24 01:43:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2022-02-24 01:43:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2022-02-24 01:43:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-02-24 01:43:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2022-02-24 01:43:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-02-24 01:43:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2022-02-24 01:43:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2022-02-24 01:43:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2022-02-24 01:43:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2022-02-24 01:43:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-02-24 01:43:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2022-02-24 01:43:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2022-02-24 01:43:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2022-02-24 01:43:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2022-02-24 01:43:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2022-02-24 01:43:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2022-02-24 01:43:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-02-24 01:43:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2022-02-24 01:43:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2022-02-24 01:43:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 558 [2022-02-24 01:43:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2022-02-24 01:43:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2022-02-24 01:43:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 582 [2022-02-24 01:43:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2022-02-24 01:43:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2022-02-24 01:43:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2022-02-24 01:43:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2022-02-24 01:43:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 622 [2022-02-24 01:43:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-24 01:43:02,294 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 01:43:02,294 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-24 01:43:02,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377830581] [2022-02-24 01:43:02,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1377830581] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-24 01:43:02,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-24 01:43:02,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [130] imperfect sequences [] total 130 [2022-02-24 01:43:02,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193752877] [2022-02-24 01:43:02,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-24 01:43:02,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-02-24 01:43:02,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-24 01:43:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-02-24 01:43:02,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4102, Invalid=12668, Unknown=0, NotChecked=0, Total=16770 [2022-02-24 01:43:02,298 INFO L87 Difference]: Start difference. First operand 637 states and 638 transitions. Second operand has 130 states, 130 states have (on average 2.4846153846153847) internal successors, (323), 129 states have internal predecessors, (323), 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 01:43:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-24 01:43:08,052 INFO L93 Difference]: Finished difference Result 900 states and 964 transitions. [2022-02-24 01:43:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-02-24 01:43:08,053 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.4846153846153847) internal successors, (323), 129 states have internal predecessors, (323), 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 634 [2022-02-24 01:43:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-24 01:43:08,054 INFO L225 Difference]: With dead ends: 900 [2022-02-24 01:43:08,054 INFO L226 Difference]: Without dead ends: 640 [2022-02-24 01:43:08,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15995 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=12552, Invalid=53240, Unknown=0, NotChecked=0, Total=65792 [2022-02-24 01:43:08,058 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4907 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 5169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 4907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-24 01:43:08,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 214 Invalid, 5169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 4907 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-24 01:43:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-02-24 01:43:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2022-02-24 01:43:08,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 509 states have (on average 1.0039292730844793) internal successors, (511), 510 states have internal predecessors, (511), 65 states have call successors, (65), 65 states have call predecessors, (65), 64 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-24 01:43:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 640 transitions. [2022-02-24 01:43:08,377 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 640 transitions. Word has length 634 [2022-02-24 01:43:08,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-24 01:43:08,377 INFO L470 AbstractCegarLoop]: Abstraction has 639 states and 640 transitions. [2022-02-24 01:43:08,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.4846153846153847) internal successors, (323), 129 states have internal predecessors, (323), 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 01:43:08,377 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 640 transitions. [2022-02-24 01:43:08,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-02-24 01:43:08,379 INFO L506 BasicCegarLoop]: Found error trace [2022-02-24 01:43:08,380 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-24 01:43:08,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-24 01:43:08,380 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-24 01:43:08,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-24 01:43:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1882811132, now seen corresponding path program 124 times [2022-02-24 01:43:08,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-24 01:43:08,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017674703] [2022-02-24 01:43:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-24 01:43:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-24 01:43:08,385 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-24 01:43:08,386 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-02-24 01:43:08,386 INFO L281 tedInterpolationCore]: Could not accelerate. [2022-02-24 01:43:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat